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Proceedings Paper

45 degree coupling loss for non-round fiber core in the Lyot fiber depolarizer
Author(s): Lei Fu; Zhengfeng Zou; Shufen Chen; Yanbin Meng; Jun Wang
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Paper Abstract

There is a coupling loss at the joint of the Lyot depolarizer consisting of two sections of birefringent fiber (Polarization Maintaining fiber or PM fiber) with non-round fiber core. The contribution to the loss for the non-roundness of the fiber core was calculated and analyzed using a method based on second moment. And the result obtained is in agreement with the experiment and so demonstrates the exist of the loss. This also provides a method of analyzing and calculating the coupling loss for non-round fiber core in the paper and is useful for manufacturing the Lyot fiber depolarizer and researching on the stability of the depolarizer type of a single mode interference fiber optic gyro (IFOG).

Paper Details

Date Published: 22 February 2008
PDF: 6 pages
Proc. SPIE 6622, International Symposium on Photoelectronic Detection and Imaging 2007: Laser, Ultraviolet, and Terahertz Technology, 662212 (22 February 2008); doi: 10.1117/12.790817
Show Author Affiliations
Lei Fu, Beijing Institute of Technology (China)
Zhengfeng Zou, Beijing Institute of Technology (China)
Shufen Chen, Beijing Institute of Technology (China)
Yanbin Meng, Beijing Institute of Technology (China)
Jun Wang, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 6622:
International Symposium on Photoelectronic Detection and Imaging 2007: Laser, Ultraviolet, and Terahertz Technology

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