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A wideband optical channelized receiver based on coherent optical frequency combs and Fabry-Perot filter
Author(s): Xin Zhong; Zhiyu Chen; Jingxian Liu; Jixin Chen
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Paper Abstract

An optical channelized receiver (OCR) with a novel structure based on two coherent optical frequency combs (OFCs) and a Fabry-Perot (FP) filter has been proposed. Input wideband signals are multicasted in all optical channels by modulating one OFC. Then, different sub-frequency bands in all optical channels are filtered out by the FP filter. Finally, the sub-frequency bands are directly converted to intermediate frequency (IF) via coherent optical heterodyne with the LO provided by another OFC. Experiment results shows that the OCR works in X band with 8 channels, and the bandwidth of each channel is 500MHz, which means the instantaneous bandwidth of the OCR is 4GHz. The max power fluctuation between different channels is 4dB, which can be improved by adding proper attenuators to certain channels. The spurious free dynamic range (SFDR) of all channels is above 44dB under noise bandwidth of 1MHz, which equals to 84 dB·Hz2/3.

Paper Details

Date Published: 10 May 2019
PDF: 4 pages
Proc. SPIE 11068, Second Symposium on Novel Technology of X-Ray Imaging, 1106814 (10 May 2019); doi: 10.1117/12.2524141
Show Author Affiliations
Xin Zhong, Science and Technology Electronic Information Control Lab. (China)
Zhiyu Chen, Science and Technology Electronic Information Control Lab. (China)
Jingxian Liu, Science and Technology on Electronic Information Control Lab. (China)
Jixin Chen, Science and Technology on Electronic Information Control Lab. (China)


Published in SPIE Proceedings Vol. 11068:
Second Symposium on Novel Technology of X-Ray Imaging
Yangchao Tian; Tiqiao Xiao; Peng Liu, Editor(s)

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