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Enhancement of signal-noise-ratio in a distributed polarization mode coupling detection system
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Jing, Wencai, Li, Xiaojingi, Liu, Kun, Xu, Tianhua, Zhang, Yimo, Zhang, Hongxia, Jia, Dagong and Peng, GangDing (2007) Enhancement of signal-noise-ratio in a distributed polarization mode coupling detection system. Optoelectronics Letters, 3 (1). pp. 57-61. doi:10.1007/s11801-007-6158-4 ISSN 1673-1905.
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Official URL: http://dx.doi.org/10.1007/s11801-007-6158-4
Abstract
A distributed polarization-mode coupling measurement system was designed and implemented using white light interferometry. It can be used for the measurement of polarization mode coupling in a high-birefringence fiber of up to 1 km. This system can be used in both fiber-optic sensors and optical fiber communications. Wavelet Transform was adopted in data processing to improve the signal-noise-ratio. The signal-noise-ratio of this system was improved more than 15 dB after denoising. The influence of denoising threshold on signal-noise-ratio and measurement accuracy was also discussed. Hilbert Transform and non-linear regression can be used in conjunction with Wavelet Transform to enhance the signal-noise-ratio and spatial resolution of this system.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | Optoelectronics Letters | ||||
Publisher: | Tianjin University of Technology | ||||
ISSN: | 1673-1905 | ||||
Official Date: | 2007 | ||||
Dates: |
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Volume: | 3 | ||||
Number: | 1 | ||||
Page Range: | pp. 57-61 | ||||
DOI: | 10.1007/s11801-007-6158-4 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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