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Proceedings Paper

New passive fiber depolarizer based on cascaded all-fiber recirculating rings
Author(s): Benson Paisheng Shen; Chinlon Lin
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Paper Abstract

We report a newly developed passive fiber depolarizer using cascaded 2 X 2 single-mode fiber couplers in a recirculating ring structure. Narrowband light source is used. The advantages are that these are all-fiber devices; they are simple, and insensitive to environmental fluctuations. Due to the cascaded incoherent recirculating fiber-ring structure, a completely depolarized light has been achieved by averaging all polarization states with equal probability. The degree of polarization as low as -20 dB has been achieved. Design criteria and design principles are discussed. Experimental results show that this new depolarizer is insensitive to the input polarization state and can eliminate the polarization noise in a polarization-sensitive fiber-optic system.

Paper Details

Date Published: 19 June 1998
PDF: 9 pages
Proc. SPIE 3420, Optical Fiber Communication, (19 June 1998); doi: 10.1117/12.312865
Show Author Affiliations
Benson Paisheng Shen, Alliance Fiber Optics Products, Inc. (United States)
Chinlon Lin, Tyco Submarine Systems (United States)

Published in SPIE Proceedings Vol. 3420:
Optical Fiber Communication
Winston I. Way; Franklin F. Tong; Alan Eli Willner, Editor(s)

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