Testing System of Fiber Polarization Coupling Based on Polarization Maintaining Structure

Huizu, 林惠祖 Lin; Qiong, 姚琼 Yao; Yongming, 胡永明 Hu

doi:10.3788/cjl20103707.1794

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“…This polarization maintaining fiber coupling phenomenon will be manifested noise, signal drift, signal attenuation and other phenomena in a variety of system. And it will reduce the polarization extinction ratio, thereby affecting system performance [2].…”

Section: Introductionmentioning

confidence: 99%

The study of dispersion compensation in Optical Coherence Domain Polarization technology

Yang

2011

SPIE Proceedings

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An effect method for reducing the birefringence dispersion in Optical Coherence Domain Polarization (OCDP) is proposed in this paper. Based on an all-fiber OCDP system with a reversing mechanism before the polarization maintenance fibers (PMF), wide spectrum of light was launched into the testing PMF in the clockwise direction and counter-clockwise direction and we obtained the measurements of symmetrical two polarization-coupling. By processing the measurements, we reduced the length of the testing fiber to a half equivalently. The experimental results show that the amplitude resolution of polarized coupling in all-fiber OCDP system is -84dB, the dynamic range of measurement is 84dB and the spatial resolution is 49.3mm without the dispersion in PMFs. By this method, the measurement accuracy of the coupled position and amplitude in PMFs was enhanced, and the effects of birefringence dispersion were inhibited.

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Section: Introductionmentioning

confidence: 99%