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Proceedings Paper

A compact single-mode fiber ring depolarizer
Author(s): Wenyue Hao; Chunhua Wang; Li Li; Jiashi Wang; Weijie Fan
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Paper Abstract

In this paper, a degree of polarization (DOP) tunable single-mode fiber ring depolarizer is proposed and demonstrated. The fiber ring is made of a 2×2 coupler and a piece of single-mode fiber delay line, which is wound into a coil performing as a half-wave plate. For a random input state of polarization, the full depolarization can be realized by rotating the whole set of fiber ring through a proper angle, and for a linearly-polarized input light, the output DOP can change from one to zero. In our experiment for a fiber ring with a delay line of 10 meters, a Fabry-Perot (FP) laser with 8-meter coherent length is depolarized with a DOP less than 1%.

Paper Details

Date Published: 29 November 2011
PDF: 6 pages
Proc. SPIE 8307, Passive Components and Fiber-Based Devices VIII, 83071Y (29 November 2011); doi: 10.1117/12.904628
Show Author Affiliations
Wenyue Hao, Shanghai Univ. (China)
Chunhua Wang, Shanghai Univ. (China)
Li Li, Shanghai Univ. (China)
Jiashi Wang, Shanghai Univ. (China)
Weijie Fan, Shanghai Univ. (China)


Published in SPIE Proceedings Vol. 8307:
Passive Components and Fiber-Based Devices VIII
Bishnu P. Pal, Editor(s)

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