Optical fiber flexible multi-wavelength filter and method of controlling wavelength of spectrum using the same

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United States of America Patent

PATENT NO 9507092
APP PUB NO 20160004013A1
SERIAL NO

14330876

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Abstract

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An optical fiber flexible multi-wavelength filter based on a polarization-diversity loop includes a pair of high-birefringence optical fibers, a polarization beam splitter connected to the pair of high-birefringence optical fibers and dividing light incident from a broadband light source into two polarized beams, and a polarization controller connected to the high-birefringence optical fibers or the polarization beam splitter and controlling the two polarized beams divided by the polarization beam splitter. The polarization controller includes a ½ wave plate or a ¼ wave plate, and the polarization controller disposed between the high-birefringence optical fibers controls an angle difference between principal axes of the high-birefringence optical fibers and visibility. Interference in the high-birefringence optical fibers is controlled via changing polarized light incident from the broadband light source using the polarization controller.

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Patent Owner(s)

Patent OwnerAddress
PUKYONG NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION(YONGDANG-DONG) 365 SINSEON-RO NAM-GU BUSAN 46241

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Yong Wook Busan, KR 12 23
Park, Kyoung Soo Busan, KR 24 153

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