Results 141 to 150 of about 1,583 (160)

Monitoring optical fiber sensor networks by optical frequency-domain reflectometry

2012 Photonics Global Conference (PGC), 2012
To improve the reliability that are very important for large-scale and long range all optical fiber sensor networks, monitoring optical fiber sensor networks is necessary. We proposed a novel method for monitoring optical fiber sensor networks using optical frequency-domain reflectometry (OFDR) which provides a narrow spatial resolution that enables us
null Zhenyang Ding, null Tiegen Liu, null Kun Liu, null Yang Du, null Dingjie Li   +4 more
openaire   +1 more source

Optical frequency domain reflectometry: principles and applications in fiber optic sensing

SPIE Proceedings, 2016
Optical Frequency Domain Reflectometry (OFDR) is the basis of an emerging high-definition distributed fiber optic sensing (HD-FOS) technique that provides an unprecedented combination of resolution and sensitivity. OFDR employs swept laser interferometry to produce strain or temperature vs.
Stephen T. Kreger, Nur Aida Abdul Rahim, Naman Garg, Sandra M. Klute, Daniel R. Metrey, Noah Beaty, James W. Jeans, Robert Gamber   +7 more
openaire   +1 more source

Digitally Enhanced Optical Frequency Domain Reflectometry with Long Measurement Range

Optical Fiber Communication Conference, 2015
A digitally enhanced optical frequency domain reflectometry technique is proposed, in which the frequency-to-distance mapping is realized in digital domain. A spatial resolution of 1 m over 56 km was obtained in demonstrational experiments.
Qingwen Liu 0003, Li Liu, Xinyu Fan, Jiangbing Du, Lin Ma 0008, Zuyuan He   +5 more
openaire   +2 more sources

Distributed dynamic strain measurement using optical frequency-domain reflectometry

Applied Optics, 2016
Distributed dynamic strain measurement based on optical frequency-domain reflectometry is proposed. The technique makes use of the wide scanning range of a tunable laser source in a short sweeping time, and subdivides the overall spectrum into narrower frequency windows.
Da-Peng, Zhou, Liang, Chen, Xiaoyi, Bao
openaire   +2 more sources

Characterization of Distributed Bragg Reflectors using Optical Frequency Domain Reflectometry

2018 IEEE Photonics Conference (IPC), 2018
We present a novel and accurate method for characterizing the reflection spectra of distributed Bragg reflectors (DBRs) using the optical frequency domain reflectometry (OFDR) method. A compact test structure with integrated reference mirror and photodetector is designed to overcome the dependence on the fiber coupling.
Zhao, Dan, Pustakhod, Dzmitry, Williams, Kevin, Leijtens, Xaveer   +3 more
openaire   +2 more sources

Distributed Characterization of Few-Mode Fibers Based on Optical Frequency Domain Reflectometry

Journal of Lightwave Technology, 2018
A novel reflectometric technique to measure distributedly group delay and modal birefringence in few mode fibers is presented. Preliminary results performed on a photonic lantern confirm the viability of the method.
Riccardo Veronese, Andrea Galtarossa, Luca Palmieri   +2 more
openaire   +2 more sources

Polarization optical frequency-domain reflectometry

Optical Fiber Communication, 1991
S. Shatalin, R. Juskaitiq, V. Listvin
openaire   +1 more source

Recent Advancements in Optical Frequency-Domain Reflectometry: A Review

IEEE Sensors Journal, 2023
Shuai Qu, Yanping Xu, Sheng Huang, Maocheng Sun, Chen Wang, Ying Shang   +5 more
openaire   +1 more source

Distributed Vibration Sensing of Seismic Event by Optical Frequency Domain Reflectometry

2021 European Conference on Optical Communication (ECOC), 2021
Tatsuya Okamoto, Daisuke Iida, Yusuke Koshikiya, Nazuki Honda   +3 more
openaire   +1 more source

Distributed high-temperature sensing based on optical frequency domain reflectometry with a standard single-mode fiber

Optics Letters, 2022
Huajian Zhong, Cailing Fu, Yanjie Meng   +2 more
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