19 June 1998 New passive fiber depolarizer based on cascaded all-fiber recirculating rings
Author Affiliations +
Proceedings Volume 3420, Optical Fiber Communication; (1998) https://doi.org/10.1117/12.312865
Event: Asia Pacific Symposium on Optoelectronics '98, 1998, Taipei, Taiwan
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.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Benson Paisheng Shen and Chinlon Lin "New passive fiber depolarizer based on cascaded all-fiber recirculating rings", Proc. SPIE 3420, Optical Fiber Communication, (19 June 1998); doi: 10.1117/12.312865; https://doi.org/10.1117/12.312865

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