摘要
We propose and demonstrate a simplified and tunable frequency interval optical frequency comb(OFC) generator based on a dual-drive Mach-Zehnder modulator(DD-MZM) using a single continuous-wave(CW) laser and low-power radio frequency(RF) driven signal. A mathematical model for the scheme is established. The 21-and 29-mode OFCs with frequency interval ranging from 6 GHz to 40 GHz are obtained under DD-MZM driven by a low-power RF signal within a maximum bandwidth of 1.12 THz. The generated OFCs exhibit spectral flatnesses of less than 0.5 d B and 0.8 d B within bandwidths of 160 GHz and 400 GHz, respectively.
基金
supported by the National Natural Science Foundation of China(No.61571251)
the Public Technical Application Research Project of Zhejiang(No.2015C34004)
the Discipline Open Fund Project of Zhejiang(No.xkxl1534)
the National Education Research of Information Technology(No.146232081)
the K.C.Wong Magna Fund in Ningbo University
