Cavity optomechanical coupling to multiple resonances assisted by kerr comb generation in toroid microcavity

摘要

Summary form only given. A high quality factor (Q) microcavity is an efficient device for generating a Kerr comb via a four-wave mixing process inside the cavity [1]. Kerr comb platforms are candidates for such applications as optical frequency combs, optical communications, arbitrary waveform generation, and microwave oscillators. Although a silica toroid microcavity (Fig. 1(a)) also has good characteristics for Kerr comb generation (high Q and small mode volume), the problem is that the cavity is prone to optomechanical oscillation, which causes amplitude and phase noises [2, 3]. Here, we study cavity optomechanical couplings between generated Kerr comb lines and multiple resonances with a view to generating a comb with low noise from a toroid microcavity. And we observed a Turing pattern comb [4] whose mechanical oscillation was suppressed with blue detuned pumping and red detuned comb lines that was induced by optomechanical couplings.