http://jlt.osa.org Journal of Lightwave Technology Sun, 15 Apr 2012 00:00:00 EST http://metadata.osa.org/rss/infobase/images/jlt.gif http://jlt.osa.org Optical Society of America © 2012 Optical Society of America 2012-05-16 http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1001 Wojtek J. Bock, Jacques Albert, Xiaoyi Bao<br/>It is a great honor and pleasure for us to publish the Special Issue of the IEEE/OSA JOURNAL OF LIGHTWAVE TECHNOLOGY (JLT), dedicated to the 21st International Conference on Optical Fiber Sensors (OFS21), on behalf of the OFS International ... [J. Lightwave Technol. 30, 1001-1002 (2012)] Sun, 15 Apr 2012 00:00:00 EST Guest Editorial on The 21st International Conference on Optical Fiber Sensors (OFS21) Wojtek J. Bock Jacques Albert Xiaoyi Bao It is a great honor and pleasure for us to publish the Special Issue of the IEEE/OSA JOURNAL OF LIGHTWAVE TECHNOLOGY (JLT), dedicated to the 21st International Conference on Optical Fiber Sensors (OFS21), on behalf of the OFS International ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1001 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1001-1002 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1003 Tobias Schuster, Reinhold Herschel, Niels Neumann, Christian G. Schäffer<br/>This paper presents the design and fabrication of a fiber-optic refractive index (RI) sensor. The novel concept employs a long-period fiber grating (LPG) to achieve surface plasmon resonance (SPR) of a single cladding mode ... [J. Lightwave Technol. 30, 1003-1008 (2012)] Sun, 15 Apr 2012 00:00:00 EST Miniaturized Long-Period Fiber Grating Assisted Surface Plasmon Resonance Sensor Tobias Schuster Reinhold Herschel Niels Neumann Christian G. Schäffer This paper presents the design and fabrication of a fiber-optic refractive index (RI) sensor. The novel concept employs a long-period fiber grating (LPG) to achieve surface plasmon resonance (SPR) of a single cladding mode ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1003 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1003-1008 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1009 Claude Paré, Serge Caron, Patrick Paradis, Antoine Proulx<br/>Theoretical and experimental work is reported on a distributed polarimetric fiber optic sensor designed for application in capillary gas chromatography. The emphasis is made on the modeling of the polarization mode coupling ... [J. Lightwave Technol. 30, 1009-1014 (2012)] Sun, 15 Apr 2012 00:00:00 EST Polarization Mode Coupling Involved in a Capillary Optical Fiber Sensor: Modeling and Experimental Validation Claude Paré Serge Caron Patrick Paradis Antoine Proulx Theoretical and experimental work is reported on a distributed polarimetric fiber optic sensor designed for application in capillary gas chromatography. The emphasis is made on the modeling of the polarization mode coupling ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1009 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1009-1014 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1015 Fumihiko Ito, Xinyu Fan, Yusuke Koshikiya<br/>Recent progress on novel long-range coherent optical frequency domain reflectometry is reviewed along with its applications to diagnosing problems with optical fiber cables. The measurement range of a conventional C-OFDR is ... [J. Lightwave Technol. 30, 1015-1024 (2012)] Sun, 15 Apr 2012 00:00:00 EST Long-Range Coherent OFDR With Light Source Phase Noise Compensation Fumihiko Ito Xinyu Fan Yusuke Koshikiya Recent progress on novel long-range coherent optical frequency domain reflectometry is reviewed along with its applications to diagnosing problems with optical fiber cables. The measurement range of a conventional C-OFDR is ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1015 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1015-1024 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1025 Sang-Mae Lee, Myung-Yung Jeong, Simarjeet S. Saini<br/>In this paper, we demonstrate a fiber Bragg grating sensor for bio-chemical detection. In the sensor area, the fiber has been chemically etched to the core with a diameter of 7 μm. Due to increased index contrast, the etched-core fiber Bragg grating ... [J. Lightwave Technol. 30, 1025-1031 (2012)] Sun, 15 Apr 2012 00:00:00 EST Etched-Core Fiber Bragg Grating Sensors Integrated With Microfluidic Channels Sang-Mae Lee Myung-Yung Jeong Simarjeet S. Saini In this paper, we demonstrate a fiber Bragg grating sensor for bio-chemical detection. In the sensor area, the fiber has been chemically etched to the core with a diameter of 7 μm. Due to increased index contrast, the etched-core fiber Bragg grating ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1025 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1025-1031 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1032 Ricardo Manuel Silva, Azam Layeghi, Mohammad Ismail Zibaii, Hamid Latifi, Jose Luis Santos, Orlando Frazão<br/>Theoretical and experimental results of three different high-birefringent fiber loop mirrors with output ports are analyzed. For theoretical model, the Jones matrix analysis is used. The theoretical studies present similar results for all experimental ... [J. Lightwave Technol. 30, 1032-1036 (2012)] Sun, 15 Apr 2012 00:00:00 EST Theoretical and Experimental Results of High-Birefringent Fiber Loop Mirror With an Output Port Probe Ricardo Manuel Silva Azam Layeghi Mohammad Ismail Zibaii Hamid Latifi Jose Luis Santos Orlando Frazão Theoretical and experimental results of three different high-birefringent fiber loop mirrors with output ports are analyzed. For theoretical model, the Jones matrix analysis is used. The theoretical studies present similar results for all experimental ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1032 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1032-1036 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1037 Hyun-Joo Kim, Young-Geun Han<br/>Polarization-dependent in-line Mach–Zehnder interferometer fabricated by using a polarization-maintaining fiber (PMF) depending on input polarization state is investigated for discrimination of temperature and ambient index. Interference is induced by ... [J. Lightwave Technol. 30, 1037-1041 (2012)] Sun, 15 Apr 2012 00:00:00 EST Polarization-Dependent In-Line Mach–Zehnder Interferometer for Discrimination of Temperature and Ambient Index Sensitivities Hyun-Joo Kim Young-Geun Han Polarization-dependent in-line Mach–Zehnder interferometer fabricated by using a polarization-maintaining fiber (PMF) depending on input polarization state is investigated for discrimination of temperature and ambient index. Interference is induced by ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1037 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1037-1041 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1042 Gustavo Rafael Collere Possetti, Ricardo Canute Kamikawachi, Marcia Muller, José Luís Fabris<br/>This paper discuss a set of tools for metrological evaluation of optical fiber grating sensors, including uncertainty analysis of the measurements. Background and definitions about basic specifications of the optical fiber ... [J. Lightwave Technol. 30, 1042-1052 (2012)] Sun, 15 Apr 2012 00:00:00 EST Metrological Evaluation of Optical Fiber Grating-Based Sensors: An Approach Towards the Standardization Gustavo Rafael Collere Possetti Ricardo Canute Kamikawachi Marcia Muller José Luís Fabris This paper discuss a set of tools for metrological evaluation of optical fiber grating sensors, including uncertainty analysis of the measurements. Background and definitions about basic specifications of the optical fiber ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1042 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1042-1052 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1053 Xuan Liu, Xiaoyi Bao<br/>The triangle refractive index profile of LEAF fiber (a non-zero dispersion shifted fiber) makes it much more sensitive to temperature and strain. Owing to its high stimulated Brillouin scattering (SBS) threshold for long distance distributed sensors, we ... [J. Lightwave Technol. 30, 1053-1059 (2012)] Sun, 15 Apr 2012 00:00:00 EST Brillouin Spectrum in LEAF and Simultaneous Temperature and Strain Measurement Xuan Liu Xiaoyi Bao The triangle refractive index profile of LEAF fiber (a non-zero dispersion shifted fiber) makes it much more sensitive to temperature and strain. Owing to its high stimulated Brillouin scattering (SBS) threshold for long distance distributed sensors, we ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1053 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1053-1059 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1060 Xabier Angulo-Vinuesa, Sonia Martin-Lopez, Javier Nuño, Pedro Corredera, Juan Diego Ania-Castañon, Luc Thévenaz, Miguel González-Herráez<br/>Raman assistance in distributed sensors based on Brillouin optical time-domain analysis can significantly extend the measurement distance. In this paper, we have developed a 2 m resolution long-range Brillouin distributed sensor that reaches 100 km using ... [J. Lightwave Technol. 30, 1060-1065 (2012)] Sun, 15 Apr 2012 00:00:00 EST Raman-Assisted Brillouin Distributed Temperature Sensor Over 100 km Featuring 2 m Resolution and 1.2 °C Uncertainty Xabier Angulo-Vinuesa Sonia Martin-Lopez Javier Nuño Pedro Corredera Juan Diego Ania-Castañon Luc Thévenaz Miguel González-Herráez Raman assistance in distributed sensors based on Brillouin optical time-domain analysis can significantly extend the measurement distance. In this paper, we have developed a 2 m resolution long-range Brillouin distributed sensor that reaches 100 km using ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1060 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1060-1065 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1066 Ander Zornoza, Mikel Sagues, Alayn Loayssa<br/>In this paper we present a Brillouin optical time domain analysis (BOTDA) sensor that takes advantage of the enhanced characteristics obtained employing self-heterodyne optical detection combined with synchronous ... [J. Lightwave Technol. 30, 1066-1072 (2012)] Sun, 15 Apr 2012 00:00:00 EST Self-Heterodyne Detection for SNR Improvement and Distributed Phase-Shift Measurements in BOTDA Ander Zornoza Mikel Sagues Alayn Loayssa In this paper we present a Brillouin optical time domain analysis (BOTDA) sensor that takes advantage of the enhanced characteristics obtained employing self-heterodyne optical detection combined with synchronous ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1066 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1066-1072 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1073 Sergei Khotiaintsev, Carlos E. Garcia-Guerra, Jordi E. Morales-Farah, Selene Perez-Garcia, Luis E. Yam-Ontiveros<br/>We present a fiber-optic refractometer with intensity-type transducer which can operate remotely via long fiber-optic cables. This version of the refractometer is intended for accessing the concentration of aqueous solutions of sodium chloride in the range ... [J. Lightwave Technol. 30, 1073-1079 (2012)] Sun, 15 Apr 2012 00:00:00 EST Optical Intensity-Type Refractometer for Remote Measurements Via Fiber-Optic Cables Sergei Khotiaintsev Carlos E. Garcia-Guerra Jordi E. Morales-Farah Selene Perez-Garcia Luis E. Yam-Ontiveros We present a fiber-optic refractometer with intensity-type transducer which can operate remotely via long fiber-optic cables. This version of the refractometer is intended for accessing the concentration of aqueous solutions of sodium chloride in the range ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1073 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1073-1079 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1080 Mateusz Smietana, Wojtek J. Bock, Predrag Mikulic, Jiahua Chen<br/>This paper presents a pressure sensor based on a long-period grating (LPG) written in boron co-doped photosensitive fiber and operating at the phase-matching turning point. It is shown that the pressure sensitivity can be tuned by varying the UV exposure time ... [J. Lightwave Technol. 30, 1080-1084 (2012)] Sun, 15 Apr 2012 00:00:00 EST Tuned Pressure Sensitivity of Dual Resonant Long-Period Gratings Written in Boron Co-Doped Optical Fiber Mateusz Smietana Wojtek J. Bock Predrag Mikulic Jiahua Chen This paper presents a pressure sensor based on a long-period grating (LPG) written in boron co-doped photosensitive fiber and operating at the phase-matching turning point. It is shown that the pressure sensitivity can be tuned by varying the UV exposure time ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1080 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1080-1084 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1085 M. Bravo, J. Sáenz, M. Bravo-Navas, M. Lopez-Amo<br/>In this work the development of an “eight-shape” fiber optic sensor for high strain measurement is experimentally demonstrated. This strain sensor is interrogated using a commercial optical time domain ... [J. Lightwave Technol. 30, 1085-1089 (2012)] Sun, 15 Apr 2012 00:00:00 EST Concrete Beam Bending Test Monitorization Using a High Strain Fiber Optic Sensor M. Bravo J. Sáenz M. Bravo-Navas M. Lopez-Amo In this work the development of an “eight-shape” fiber optic sensor for high strain measurement is experimentally demonstrated. This strain sensor is interrogated using a commercial optical time domain ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1085 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1085-1089 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1090 W. Zhang, D. J. Webb, G.-D. Peng<br/>In this work we experimentally investigate the response time of humidity sensors based on polymer optical fiber Bragg gratings. By the use of etching with acetone we can control the poly (methyl methacrylate) based fiber in ... [J. Lightwave Technol. 30, 1090-1096 (2012)] Sun, 15 Apr 2012 00:00:00 EST Investigation Into Time Response of Polymer Fiber Bragg Grating Based Humidity Sensors W. Zhang D. J. Webb G.-D. Peng In this work we experimentally investigate the response time of humidity sensors based on polymer optical fiber Bragg gratings. By the use of etching with acetone we can control the poly (methyl methacrylate) based fiber in ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1090 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1090-1096 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1097 Bai-Ou Guan, Long Jin, Yang Zhang, Hwa-Yaw Tam<br/>Fiber grating laser sensors have been attracting great interest because of their high signal-to-noise ratio and narrow linewidth that permit high resolution sensing. According to the working principle, fiber grating laser ... [J. Lightwave Technol. 30, 1097-1112 (2012)] Sun, 15 Apr 2012 00:00:00 EST Polarimetric Heterodyning Fiber Grating Laser Sensors Bai-Ou Guan Long Jin Yang Zhang Hwa-Yaw Tam Fiber grating laser sensors have been attracting great interest because of their high signal-to-noise ratio and narrow linewidth that permit high resolution sensing. According to the working principle, fiber grating laser ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1097 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1097-1112 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1113 Xiaolei Li, Qizhen Sun, Jianghai Wo, Manliang Zhang, Deming Liu<br/>A distributed fiber-optic sensor system is proposed and demonstrated for long-distance intrusion-detection, which employs the hybrid time/wavelength division multiplexing architecture. The sensing elements are single-mode telecommunication fiber which can be ... [J. Lightwave Technol. 30, 1113-1120 (2012)] Sun, 15 Apr 2012 00:00:00 EST Hybrid TDM/WDM-Based Fiber-Optic Sensor Network for Perimeter Intrusion Detection Xiaolei Li Qizhen Sun Jianghai Wo Manliang Zhang Deming Liu A distributed fiber-optic sensor system is proposed and demonstrated for long-distance intrusion-detection, which employs the hybrid time/wavelength division multiplexing architecture. The sensing elements are single-mode telecommunication fiber which can be ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1113 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1113-1120 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1121 Hiroyuki Iida, Yusuke Koshikiya, Fumihiko Ito, Kuniaki Tanaka<br/>This paper proposes a novel parallel detection scheme for enhancing the sensitivity of coherent optical time domain reflectometry (C-OTDR). The proposed scheme is based on frequency-division multiplexing using a phase ... [J. Lightwave Technol. 30, 1121-1126 (2012)] Sun, 15 Apr 2012 00:00:00 EST High-Sensitivity Coherent Optical Time Domain Reflectometry Employing Frequency-Division Multiplexing Hiroyuki Iida Yusuke Koshikiya Fumihiko Ito Kuniaki Tanaka This paper proposes a novel parallel detection scheme for enhancing the sensitivity of coherent optical time domain reflectometry (C-OTDR). The proposed scheme is based on frequency-division multiplexing using a phase ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1121 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1121-1126 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1127 Jianjun Ma, Aldona Kos, Wojtek J. Bock, Xianzhe Li, Huy Nguyen, Zhi Yuan Wang, Andrea Cusano<br/>Based on the previously proposed concept of a lab on a fiber (LOF) and an LOF-based platform for detecting trace vapors of TNT explosives, in this paper, we study the compatibility of the LOF device with a preconcentration ... [J. Lightwave Technol. 30, 1127-1133 (2012)] Sun, 15 Apr 2012 00:00:00 EST Lab-on-a-Fiber Device for Trace Vapor TNT Explosive Detection: Comprehensive Performance Evaluation Jianjun Ma Aldona Kos Wojtek J. Bock Xianzhe Li Huy Nguyen Zhi Yuan Wang Andrea Cusano Based on the previously proposed concept of a lab on a fiber (LOF) and an LOF-based platform for detecting trace vapors of TNT explosives, in this paper, we study the compatibility of the LOF device with a preconcentration ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1127 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1127-1133 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1134 Mohsen Amiri Farahani, Michael T. V. Wylie, Eduardo Castillo-Guerra, Bruce G. Colpitts<br/>This paper reports on a new mechanism to decrease the number of averages and, consequently, the measurement time of Brillouin optical time-domain analysis (BOTDA) sensors using wavelet shrinkage techniques. Two different ... [J. Lightwave Technol. 30, 1134-1142 (2012)] Sun, 15 Apr 2012 00:00:00 EST Reduction in the Number of Averages Required in BOTDA Sensors Using Wavelet Denoising Techniques Mohsen Amiri Farahani Michael T. V. Wylie Eduardo Castillo-Guerra Bruce G. Colpitts This paper reports on a new mechanism to decrease the number of averages and, consequently, the measurement time of Brillouin optical time-domain analysis (BOTDA) sensors using wavelet shrinkage techniques. Two different ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1134 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1134-1142 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1143 Pengfei Wang, Gilberto Brambilla, Ming Ding, Yuliya Semenova, Qiang Wu, Gerald Farrell<br/>An edge filter-based ratiometric wavelength measurement system is modeled and analyzed in this paper. The results confirm that the noise of input signal and photodetectors limits the resolution of the wavelength measurement system. The achievable resolution is ... [J. Lightwave Technol. 30, 1143-1149 (2012)] Sun, 15 Apr 2012 00:00:00 EST The Use of a Fiber Comb Filter Fabricated by a CO_2 Laser Irradiation to Improve the Resolution of a Ratiometric Wavelength Measurement System Pengfei Wang Gilberto Brambilla Ming Ding Yuliya Semenova Qiang Wu Gerald Farrell An edge filter-based ratiometric wavelength measurement system is modeled and analyzed in this paper. The results confirm that the noise of input signal and photodetectors limits the resolution of the wavelength measurement system. The achievable resolution is ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1143 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1143-1149 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1150 Jinesh Mathew, Yuliya Semenova, Gerald Farrell<br/>A novel method for dew detection based on photonic crystal fiber (PCF) interferometer that operates in reflection mode is presented in this paper. The fabrication of the sensor head is simple since it only involves cleaving ... [J. Lightwave Technol. 30, 1150-1155 (2012)] Sun, 15 Apr 2012 00:00:00 EST Photonic Crystal Fiber Interferometer for Dew Detection Jinesh Mathew Yuliya Semenova Gerald Farrell A novel method for dew detection based on photonic crystal fiber (PCF) interferometer that operates in reflection mode is presented in this paper. The fabrication of the sensor head is simple since it only involves cleaving ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1150 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1150-1155 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1156 Min-Seok Yoon, Sangoh Park, Young-Geun Han<br/>We investigate a periodically micro-tapered fiber grating for simultaneous measurement of strain and temperature. The fundamental core mode can be coupled to the cladding mode by tapering a single-mode fiber periodically, ... [J. Lightwave Technol. 30, 1156-1160 (2012)] Sun, 15 Apr 2012 00:00:00 EST Simultaneous Measurement of Strain and Temperature by Using a Micro-Tapered Fiber Grating Min-Seok Yoon Sangoh Park Young-Geun Han We investigate a periodically micro-tapered fiber grating for simultaneous measurement of strain and temperature. The fundamental core mode can be coupled to the cladding mode by tapering a single-mode fiber periodically, ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1156 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1156-1160 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1161 Yongkang Dong, Liang Chen, Xiaoyi Bao<br/>We demonstrate a high-performance Brillouin optical time-domain analysis (BOTDA) system with an extended sensing range by combining frequency-division multiplexing and in-line Erbium doped fiber amplifiers (EDFAs). The frequency-division multiplexing BOTDA ... [J. Lightwave Technol. 30, 1161-1167 (2012)] Sun, 15 Apr 2012 00:00:00 EST Extending the Sensing Range of Brillouin Optical Time-Domain Analysis Combining Frequency-Division Multiplexing and In-Line EDFAs Yongkang Dong Liang Chen Xiaoyi Bao We demonstrate a high-performance Brillouin optical time-domain analysis (BOTDA) system with an extended sensing range by combining frequency-division multiplexing and in-line Erbium doped fiber amplifiers (EDFAs). The frequency-division multiplexing BOTDA ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1161 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1161-1167 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1168 Ana Margarida Rodrigues Pinto, Manuel Lopez-Amo, Jens Kobelke, Kay Schuster<br/>In the present work, a simple temperature fiber laser sensor configuration is proposed. The temperature fiber laser sensor is based in the combination of a Fabry-Perót hybrid cavity and a random mirror. The Fabry-Perót hybrid cavity is fabricated ... [J. Lightwave Technol. 30, 1168-1172 (2012)] Sun, 15 Apr 2012 00:00:00 EST Temperature Fiber Laser Sensor Based on a Hybrid Cavity and a Random Mirror Ana Margarida Rodrigues Pinto Manuel Lopez-Amo Jens Kobelke Kay Schuster In the present work, a simple temperature fiber laser sensor configuration is proposed. The temperature fiber laser sensor is based in the combination of a Fabry-Perót hybrid cavity and a random mirror. The Fabry-Perót hybrid cavity is fabricated ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1168 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1168-1172 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1173 R. A. Perez-Herrera, A. Ullan, D. Leandro, M. Fernandez-Vallejo, M. A. Quintela, A. Loayssa, J. M. Lopez-Higuera, M. Lopez-Amo<br/>In this work, a novel single-longitudinal-mode (SLM) four-wavelength laser configuration for sensing applications in the L-band is proposed and experimentally demonstrated. The sensor system presented here is based on ring resonators, and employs fiber Bragg gratings to select ... [J. Lightwave Technol. 30, 1173-1177 (2012)] Sun, 15 Apr 2012 00:00:00 EST L-Band Multiwavelength Single-Longitudinal Mode Fiber Laser for Sensing Applications R. A. Perez-Herrera A. Ullan D. Leandro M. Fernandez-Vallejo M. A. Quintela A. Loayssa J. M. Lopez-Higuera M. Lopez-Amo In this work, a novel single-longitudinal-mode (SLM) four-wavelength laser configuration for sensing applications in the L-band is proposed and experimentally demonstrated. The sensor system presented here is based on ring resonators, and employs fiber Bragg gratings to select ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1173 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1173-1177 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1178 Jianfei Wang, Hong Luo, Zhou Meng, Yongming Hu<br/>This paper reports a new-style all-polarization-maintaining optical fiber vector hydrophone (OFVH) that is composed of a three-component optical fiber accelerometer and an optical fiber hydrophone. In order to make the OFVH small and compact in volume, the ... [J. Lightwave Technol. 30, 1178-1184 (2012)] Sun, 15 Apr 2012 00:00:00 EST Experimental Research of an All-Polarization-Maintaining Optical Fiber Vector Hydrophone Jianfei Wang Hong Luo Zhou Meng Yongming Hu This paper reports a new-style all-polarization-maintaining optical fiber vector hydrophone (OFVH) that is composed of a three-component optical fiber accelerometer and an optical fiber hydrophone. In order to make the OFVH small and compact in volume, the ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1178 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1178-1184 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1185 Mateusz Smietana, Daniel Brabant, Wojtek J. Bock, Predrag Mikulic, Tinko Eftimov<br/>This paper presents a modification of the refractive-index (RI) response of an intermodal interferometer based on photonic crystal fiber (PCF) using a thin plasma-deposited silicon nitride (SiN_x) overlay with a high refractive index. We show that the film ... [J. Lightwave Technol. 30, 1185-1189 (2012)] Sun, 15 Apr 2012 00:00:00 EST Refractive-Index Sensing With Inline Core-Cladding Intermodal Interferometer Based on Silicon Nitride Nano-Coated Photonic Crystal Fiber Mateusz Smietana Daniel Brabant Wojtek J. Bock Predrag Mikulic Tinko Eftimov This paper presents a modification of the refractive-index (RI) response of an intermodal interferometer based on photonic crystal fiber (PCF) using a thin plasma-deposited silicon nitride (SiN_x) overlay with a high refractive index. We show that the film ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1185 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1185-1189 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1190 Joao Batista Rosolem, Mauro Biscaro Elias, Livia Alves Ribeiro, Carlos Kenichi Suzuki<br/>This work describes new types of optical sensing systems based on Depressed Cladding Erbium Doped Fiber (DC-EDF). Due to the amplification characteristics developed for S-Band uses, this sensing system has high sensitivity, ... [J. Lightwave Technol. 30, 1190-1195 (2012)] Sun, 15 Apr 2012 00:00:00 EST Optical Sensing Systems Based on Depressed Cladding Erbium Doped Fiber Joao Batista Rosolem Mauro Biscaro Elias Livia Alves Ribeiro Carlos Kenichi Suzuki This work describes new types of optical sensing systems based on Depressed Cladding Erbium Doped Fiber (DC-EDF). Due to the amplification characteristics developed for S-Band uses, this sensing system has high sensitivity, ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1190 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1190-1195 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1196 Wentao Zhang, Rui Ma, Fang Li<br/>This paper presents a three axis slim fiber laser vector hydrophone. Using a V-shaped flexed beam as a mass-spring element, the acceleration in the radius direction can induce axial strain in the fiber laser. Theoretical ... [J. Lightwave Technol. 30, 1196-1200 (2012)] Sun, 15 Apr 2012 00:00:00 EST High Performance UltraThin Fiber Laser Vector Hydrophone Wentao Zhang Rui Ma Fang Li This paper presents a three axis slim fiber laser vector hydrophone. Using a V-shaped flexed beam as a mass-spring element, the acceleration in the radius direction can induce axial strain in the fiber laser. Theoretical ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1196 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1196-1200 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1201 Aleksandra Czapla, Wojtek J. Bock, Tomasz R. Woliński, Roman Dabrowski, Edward Nowinowski-Kryszelnicki<br/>This paper presents the latest developments in the field of liquid crystal long-period fiber gratings (LC-LPFGs). The new design of LC-LPFG proposed here has unique propagation properties stemming from the use of special ... [J. Lightwave Technol. 30, 1201-1207 (2012)] Sun, 15 Apr 2012 00:00:00 EST Tuning Cladding-Mode Propagation Mechanisms in Liquid Crystal Long-Period Fiber Gratings Aleksandra Czapla Wojtek J. Bock Tomasz R. Woliński Roman Dabrowski Edward Nowinowski-Kryszelnicki This paper presents the latest developments in the field of liquid crystal long-period fiber gratings (LC-LPFGs). The new design of LC-LPFG proposed here has unique propagation properties stemming from the use of special ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1201 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1201-1207 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1208 Sławomir Ertman, Aura Higuera Rodríguez, Marzena M. Tefelska, Miłosz S. Chychłowski, Dariusz Pysz, Ryszard Buczyński, Edward Nowinowski-Kruszelnicki, Roman Dąbrowski, Tomasz R. Woliński<br/>Photonic liquid crystal fibers (PLCFs) can be categorized in two principal groups: index guiding PLCFs and photonic bandgap PLCFs. In this paper we focus on index guiding PLCFs in which effective refractive index of the ... [J. Lightwave Technol. 30, 1208-1214 (2012)] Sun, 15 Apr 2012 00:00:00 EST Index Guiding Photonic Liquid Crystal Fibers for Practical Applications Sławomir Ertman Aura Higuera Rodríguez Marzena M. Tefelska Miłosz S. Chychłowski Dariusz Pysz Ryszard Buczyński Edward Nowinowski-Kruszelnicki Roman Dąbrowski Tomasz R. Woliński Photonic liquid crystal fibers (PLCFs) can be categorized in two principal groups: index guiding PLCFs and photonic bandgap PLCFs. In this paper we focus on index guiding PLCFs in which effective refractive index of the ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1208 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1208-1214 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1215 Marcelo A. Soto, Alessandro Signorini, Tiziano Nannipieri, Stefano Faralli, Gabriele Bolognini, Fabrizio Di Pasquale<br/>We present a theoretical and experimental analysis of the sensing capabilities of Raman-based distributed temperature optical fiber sensor (RDTS) systems using only the anti-Stokes (AS) component in loop configuration. In ... [J. Lightwave Technol. 30, 1215-1222 (2012)] Sun, 15 Apr 2012 00:00:00 EST Impact of Loss Variations on Double-Ended Distributed Temperature Sensors Based on Raman Anti-Stokes Signal Only Marcelo A. Soto Alessandro Signorini Tiziano Nannipieri Stefano Faralli Gabriele Bolognini Fabrizio Di Pasquale We present a theoretical and experimental analysis of the sensing capabilities of Raman-based distributed temperature optical fiber sensor (RDTS) systems using only the anti-Stokes (AS) component in loop configuration. In ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1215 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1215-1222 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1223 Yasser Chiniforooshan, Jianjun Ma, Wojtek J. Bock<br/>In this paper, the enhancement of collection efficiency in fiber-optic evanescent-wave (EW) sensors is studied. Both theory and experimental results are presented. The key is to consider the roughness conditions at the ... [J. Lightwave Technol. 30, 1223-1228 (2012)] Sun, 15 Apr 2012 00:00:00 EST Evanescent-Wave Fiber-Optic Sensor: On Power Transfer From Core-Cladding Interface to Fiber End-Face Yasser Chiniforooshan Jianjun Ma Wojtek J. Bock In this paper, the enhancement of collection efficiency in fiber-optic evanescent-wave (EW) sensors is studied. Both theory and experimental results are presented. The key is to consider the roughness conditions at the ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1223 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1223-1228 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1229 C. Koutsides, E. Davies, K. Kalli, M. Komodromos, T. Allsop, D. J. Webb, L. Zhang<br/>We present the development of superstructure fiber gratings (SFG) in Ge-doped, silica optical fiber using femtosecond laser inscription. We apply a simple but extremely effective single step process to inscribe low loss, ... [J. Lightwave Technol. 30, 1229-1236 (2012)] Sun, 15 Apr 2012 00:00:00 EST Superstructure Fiber Gratings Via Single Step Femtosecond Laser Inscription C. Koutsides E. Davies K. Kalli M. Komodromos T. Allsop D. J. Webb L. Zhang We present the development of superstructure fiber gratings (SFG) in Ge-doped, silica optical fiber using femtosecond laser inscription. We apply a simple but extremely effective single step process to inscribe low loss, ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1229 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1229-1236 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1237 Junhao Hu, Zhihao Chen, Changyuan Yu<br/>A 150-km long distance fiber Bragg Grating (FBG) temperature and vibration sensor system was proposed and demonstrated by using the stimulated Raman amplification. It can achieve 150-km measurement range by using a low power ... [J. Lightwave Technol. 30, 1237-1243 (2012)] Sun, 15 Apr 2012 00:00:00 EST 150-km Long Distance FBG Temperature and Vibration Sensor System Based on Stimulated Raman Amplification Junhao Hu Zhihao Chen Changyuan Yu A 150-km long distance fiber Bragg Grating (FBG) temperature and vibration sensor system was proposed and demonstrated by using the stimulated Raman amplification. It can achieve 150-km measurement range by using a low power ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1237 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1237-1243 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1244 Hiroshi Watanabe, Mitsuru Kihara, Masanori Tanaka, Masanobu Toyonaga<br/>We propose an inspection technique for cleaved optical fiber ends based on the Fabry–Perot interferometer. An inspected fiber end is determined as uneven or flat depending on whether both the measured return losses from ... [J. Lightwave Technol. 30, 1244-1249 (2012)] Sun, 15 Apr 2012 00:00:00 EST Inspection Technique for Cleaved Optical Fiber Ends Based on Fabry–Perot Interferometer Hiroshi Watanabe Mitsuru Kihara Masanori Tanaka Masanobu Toyonaga We propose an inspection technique for cleaved optical fiber ends based on the Fabry–Perot interferometer. An inspected fiber end is determined as uneven or flat depending on whether both the measured return losses from ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1244 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1244-1249 © 2011 IEEE http://www.opticsinfobase.org/abstract.cfm?URI=jlt-30-8-1250 M. Belal, T. P. Newson<br/>Interpretation of Brillouin-scattering-based distributed strain and temperature measurements so far has been based on the premise that the Brillouin coefficients used to describe the influence of strain or temperature remain ... [J. Lightwave Technol. 30, 1250-1255 (2012)] Sun, 15 Apr 2012 00:00:00 EST Experimental Examination of the Variation of the Spontaneous Brillouin Power and Frequency Coefficients Under the Combined Influence of Temperature and Strain M. Belal T. P. Newson Interpretation of Brillouin-scattering-based distributed strain and temperature measurements so far has been based on the premise that the Brillouin coefficients used to describe the influence of strain or temperature remain ... Optical Society of America 2012-04-15 EN http://www.opticsinfobase.org/abstract.cfm?uri=jlt-30-8-1250 Journal of Lightwave Technology, Vol. 30, Issue 8, pp. 1250-1255 © 2011 Crown