High-accuracy discriminative sensing of strain and temperature by use of birefringence and Brillouin scattering in a polarization-maintaining fiber

2008 ◽  
Author(s):  
Weiwen Zou ◽  
Zuyuan He ◽  
Kazuo Hotate
Keyword(s):  
Brillouin Scattering ◽  
High Accuracy ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining

Automatic Aligning Method of Panda Polarization Maintaining Fiber with High Accuracy

2015 ◽  
Vol 44 (2) ◽  
pp. 206004
Author(s):  
刘振华 LIU Zhen-hua ◽  
冯迪 FENG Di ◽  
黄怀波 HUANG Huai-bo ◽  
杨德伟 YANG De-wei ◽  
宋凝芳 SONG Ning-fang
Keyword(s):  
High Accuracy ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining

scholarly journals Group-Birefringence-Dispersion Measurements for Polarization-Maintaining Fibers Using a Kerr Phase-Interrogator

2020 ◽  
Vol 10 (24) ◽  
pp. 9031
Author(s):  
Yang Lu
Keyword(s):  
Group Delay ◽  
Laser Wavelength ◽  
Differential Group Delay ◽  
Optical Signals ◽  
Differential Group ◽  
Principal Axes ◽  
Polarization Maintaining Fiber ◽  
Elliptical Core ◽  
Polarization Maintaining ◽  
The Impact

A method which utilizes a Kerr phase-interrogator to measure the group birefringence dispersion (GBD) of a polarization-maintaining fiber (PMF) is systematically studied in this paper. The differential group delay of two sinusoidally modulated optical signals (SMOSs) polarized along the principal axes of the PMF is measured by a Kerr phase-interrogator, which leads to the group birefringence of the PMF. As the laser wavelength of the SMOSs varies, the group birefringence as a function of the laser wavelength is obtained, and the GBD is calculated as the derivative of the group birefringence with respect to the laser wavelength. The proposed method is experimentally demonstrated by characterizations of a Panda PMF with high GBD and an elliptical core PMF with low GBD, and its performance is analyzed. The proposed method eliminates the impact of the laser coherent length and allows for characterizing the GBD of PMFs that are tens of kilometers long.

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