7 November 2014 Multifrequency optoelectronic oscillator
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We propose a simple and cost-effective multifrequency optoelectronic oscillator (OEO) which is able to simultaneously generate two or more independent microwave signals by adding parallel filtering branches in the feedback loop. In the experimental demonstration, two signals with frequencies of 20 and 9 GHz are successfully generated. Compared with a conventional OEO, the generated signals have no additional noise and do not interfere with each other. The side-mode suppression by the optical dual-loop configuration is effective for both channels. The measured side-mode suppression ratios are larger than 65 dB, and the phase noises at a 10-kHz frequency offset are −108 and −113  dBc/Hz for 20 and 9-GHz signals, respectively.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Jiang Yang, Jiang Yang, Jianhui Liang, Jianhui Liang, Fu Guang Bai, Fu Guang Bai, Lin Hu, Lin Hu, Shaohong Cai, Shaohong Cai, Hongxia Li, Hongxia Li, Yuanyuan Shan, Yuanyuan Shan, Chuang Ma, Chuang Ma, } "Multifrequency optoelectronic oscillator," Optical Engineering 53(11), 116106 (7 November 2014). https://doi.org/10.1117/1.OE.53.11.116106 . Submission:

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