27 June 2017 Tunable ultraflat optical frequency comb generator based on optoelectronic oscillator using dual-parallel Mach–Zehnder modulator
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Abstract
A tunable ultraflat optical frequency comb generator based on the optoelectronic oscillator (OEO) using a dual-parallel Mach–Zehnder modulator (DPMZM) is proposed and experimentally demonstrated. By incorporating a tunable DPMZM-OEO, five comb lines were generated with frequency spacing from 5 to 12 GHz under a wide central wavelength tuning from 1530 to 1560 nm, and a comb flatness of 0.3 dB is obtained. The corresponding signal generated by the DPMZM-OEO is also measured, and the phase noise of the frequency tunable signals is as low as 125    dBc / Hz at 10-kHz frequency offset.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Zhengyang Xie, Shangyuan Li, Haozhe Yan, Xuedi Xiao, Xiaoxiao Xue, Xiaoping Zheng, Bingkun Zhou, "Tunable ultraflat optical frequency comb generator based on optoelectronic oscillator using dual-parallel Mach–Zehnder modulator," Optical Engineering 56(6), 066115 (27 June 2017). https://doi.org/10.1117/1.OE.56.6.066115 . Submission: Received: 12 January 2017; Accepted: 5 June 2017
Received: 12 January 2017; Accepted: 5 June 2017; Published: 27 June 2017
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