Analysis of performance of RFS-based optical comb influenced by linewidth of laser source

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2014,（2）
• 页码范围: 9-13
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL201412.020601

摘要

The laser source is an important element whose properties have influence on the output performance of single sideband (SSB) optical comb based on recirculating frequency shifter (RFS).The theoretical and experimental results show that the tone-to-noise ratio (TNR),flatness,and stability of optical comb improve using laser source with narrower linewidth.In order to obtain the optical comb with TNR larger than 42 dB and degree of stability (DOS) smaller than-6.7 dB,external cavity laser (ECL) with linewidth from 100 kHz to 1 MHz is a trade-off choice.