7 November 2012 Depolarizer improvement for optical fiber vibration sensor
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Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 8421AK (2012) https://doi.org/10.1117/12.968575
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
An optical signal with a polarization dependence behaves as a noise signal in a vibration sensing optical fiber. To remove the noise signal, the optical fiber vibration sensor needs to have a depolarizer. Fusion splicing the polarization maintaining fiber with a 45 degree angle offset is a common method to produce the depolarizer. In this paper, we present a method to improve the depolarizer for the vibration sensor through the use of fusion splicing. We succeeded to reduce the noise with the improved depolarizer that uses a method to observe the fiber end surface of polarization maintaining fiber for analyzing the polarization plane.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Toshiki Kubo, Toshiki Kubo, Ataru Takahashi, Ataru Takahashi, Nancy Zhao, Nancy Zhao, Ryozo Yamauchi, Ryozo Yamauchi, } "Depolarizer improvement for optical fiber vibration sensor", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AK (7 November 2012); doi: 10.1117/12.968575; https://doi.org/10.1117/12.968575
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