Flat-top optical frequency comb generation based on optical fiber-loop modulation with external injection

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（7）
• 页码范围: 18-20
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201311.070603

摘要

An optical frequency comb generation scheme using time-to-frequency conversion and optical fiber-loop modulation is proposed and demonstrated experimentally.Flat-top optical pulse train from an intensity modulator is injected into a fiber loop,which includes a phase modulator and an amplifier and is cyclically modulated by the phase modulator,to generate abundant optical comb lines.A total of 110 comb lines with 3-dB spectral power variation and 10-GHz frequency spacing are obtained.The proposed scheme is relatively simple and uses only one intensity modulator and one phase modulator.