Influence of Optical Fiber Length on the Jitter Performance of Subsampled Photonic Downconverter for S-band RADAR Systems
2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)(2020)
摘要
A packaged sub-sampled photonic downconverter is demonstrated with digitization bandwidth of 42.3 MHz for S-band operation. Nyquist folding of a single-tone signal at 2.517 GHz has been demonstrated successfully. Further, impact of length of fiber spool in front of optical-to-electrical converter i.e. photodiode has been studied for various RF input power levels ranging from 2 km to 10 km in terms of phase noise and timing jitter of sub-sampled signal.
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关键词
Photonic frequency down conversion,jitter,phase noise,radio frequency photonics,analog-optical signal processing
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