A simplified tunable frequency interval optical frequency comb generator using a single continuous-wave laser
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 dB and 0.8 dB within bandwidths of 160 GHz and 400 GHz, respectively.
Unable to display preview. Download preview PDF.
- Kolchin Pavel, Belthangady Chinmay, Du Shengwang, Yin G Y and Harris S E, 101, 103601 (2008).Google Scholar