9 December 2015 Frequency-doubling optoelectronic oscillator based on destructive interference
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A frequency-doubling optoelectronic oscillator (OEO) using two cascaded modulators based on destructive interference is proposed and experimentally demonstrated. In the proposed system, we utilize a cascaded modulator including a phase modulator and an intensity modulator, which implements a carrier-suppressed double-sideband modulation based on destructive interference to generate a frequency-doubled microwave signal. Meanwhile, the phase modulator is connected by a chirp fiber Bragg grating in the loop, which forms a microwave photonic filter to select the fundamental frequency signal in the OEO loop. As a result, a frequency-doubled microwave signal at 17.9 and 20.5 GHz is generated, respectively. The phase noises and the long-term stability of the generated microwave signals are also investigated.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Jun Jiang, Fushen Chen, Mengqiu Fan, Chengxin Li, Qimeng Dong, "Frequency-doubling optoelectronic oscillator based on destructive interference," Optical Engineering 54(12), 126104 (9 December 2015). https://doi.org/10.1117/1.OE.54.12.126104 . Submission:

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