期刊
OPTICS LETTERS
卷 38, 期 4, 页码 525-527出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.38.000525
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资金
- Defense Sciences Office of Defense Advanced Research Projects Agency [W911QX-12-C-0067]
- Air Force Office of Scientific Research [FA9550-12-C-0068]
We theoretically and experimentally investigate the chaotic regime of optical frequency combs generated in nonlinear ring microresonators pumped with continuous wave light. We show that the chaotic regime reveals itself by a flat top symmetric envelope of the frequency spectrum, when observed by means of an optical spectrum analyzer. The comb, demodulated on a fast photodiode, produces a noisy radio frequency signal with spectral width significantly exceeding the linear bandwidth of the microresonator mode. We discuss practical ways of excitation of a coherent frequency comb and avoiding the chaotic regime. (c) 2013 Optical Society of America
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