Huang Shu-Wei, Vinod Abhinav Kumar, Yang Jinghui, Yu Mingbin, Kwong Dim-Lee, Wong Chee Wei
Opt Lett. 2017 Jun 1;42(11):2110-2113. doi: 10.1364/OL.42.002110.
We study a new type of Kerr frequency comb where the momentum conservation law is fulfilled by azimuthal modulation of the waveguide dispersion. The concept can expand the parametric range in which a Kerr frequency comb is obtained. In a good agreement with the theoretical analysis, we demonstrate a multispectral Kerr frequency comb covering important fiber-optic communication bands. Comb coherence and absence of a sub-comb offset are confirmed by continuous-wave heterodyne beat note and amplitude noise spectra measurements. The device can be used for achieving broadband optical frequency synthesizers and high-capacity coherent communication.
我们研究了一种新型的克尔频率梳，其中通过波导色散的方位角调制来满足动量守恒定律。该概念可以扩展获得克尔频率梳的参数范围。与理论分析高度一致，我们展示了一个覆盖重要光纤通信波段的多光谱克尔频率梳。通过连续波外差拍频音符和幅度噪声谱测量，证实了梳状相干性以及不存在子梳偏移。该器件可用于实现宽带光学频率合成器和高容量相干通信。
