Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5449410 | Optics Communications | 2017 | 5 Pages |
Abstract
A simple and quasi-tunable optical frequency comb (OFC) generator is proposed and experimentally demonstrated using a C-band passively Fabry-Pérot quantum dot mode-locked laser and a dual-driven LiNbO3 Mach-Zehnder modulator. A 16-nm bandwidth OFC with 81, 58 and 30 comb lines at frequency interval of 23.3Â GHz, 35Â GHz and 70Â GHz respectively is obtained experimentally. Measured average optical signal to noise ratio of 10-dB bandwidth OFCs is 36.3Â dB, 38.5Â dB and 40.8Â dB at frequency interval of 23.3Â GHz, 35Â GHz and 70Â GHz, respectively. Besides, single-sideband phase noise of the 23.3Â GHz and 35Â GHz frequency comb is â110 dBc/Hz and â102 dBc/Hz at an offset of 1Â kHz, respectively. RF linewidth of the 23.3Â GHz and 35Â GHz OFC is about from 275Â Hz to 289Â Hz. This is considered a very simple OFC generator with a broadband and seamless spectrum.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Li Liu, Xiupu Zhang, Tiefeng Xu, Zhenxiang Dai, Taijun Liu,