45° Coupling loss for non-round fiber core in the Lyot fiber depolarizer

Lei Fu*, Zhengfeng Zou, Shufen Chen, Yanbin Meng, Jun Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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).

Original languageEnglish
Title of host publicationInternational Symposium on Photoelectronic Detection and Imaging 2007 - Laser, Ultraviolet, and Terahertz Technology
DOIs
Publication statusPublished - 2008
EventInternational Symposium on Photoelectronic Detection and Imaging 2007 - Laser, Ultraviolet, and Terahertz Technology - Beijing, China
Duration: 9 Sept 200712 Sept 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6622
ISSN (Print)0277-786X

Conference

ConferenceInternational Symposium on Photoelectronic Detection and Imaging 2007 - Laser, Ultraviolet, and Terahertz Technology
Country/TerritoryChina
CityBeijing
Period9/09/0712/09/07

Keywords

  • Coupling loss
  • IFOG
  • Lyot depolarizer

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