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Journal Article Polarization-Insensitive Optical Receiver Module Based on Thin-Film Beam Splitters
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Authors
Kyeeun Kim, Hyun Seo Kang, Youngsoon Heo, Siwoong Park, Hyunwoong Yeom, Sung Chang Kim
Issue Date
2020-01
Citation
IEEE Photonics Technology Letters, v.32, no.1, pp.23-26
ISSN
1041-1135
Publisher
IEEE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/LPT.2019.2955673
Project Code
19PK1200, Common InnoCity in Gwangju and Jeonnam, Open Lab construction Project, Kang Hyun Seo
Abstract
Optical receiver modules play an important role in receiving signals from the Fiber Bragg Grating (FBG) sensors used for monitoring in civil structures, power facilities, and other sensing applications. When multiple sensors are used, more photo diodes receive optical signals; thin-film beam splitters with polarization characteristics are therefore used to reduce the size of the optical receiver module. Using a reflective semiconductor optical amplifier (R-SOA) with polarization characteristics in a sensing system with an FBG sensor, a structure that is less sensitive to polarization was developed by packaging a quad optical receiver module. A stabilization of 짹4.67% was achieved using the dual optical receiver module in polarization and of 짹1.20% with the quad optical receiver module in polarization.
KSP Keywords
Civil structures, Fiber bragg grating (FBG) sensor, Optical receiver, Polarization characteristics, Receiver module, Reflective Semiconductor Optical Amplifier, Semiconductor optical amplifiers(SOAs), Sensing applications, Sensing system, beam splitter, multiple sensors