Tunable optical comb generation based on carrier-suppressed intensity modulation and phase modulation

• 来源期刊: 中国光学快报(英文版)
• 学科: 工学
• 关键词: 相位调制器 可调光 强度调制 载波 调制光谱 移相调制 微波功率 调制指数
• 年，卷（期）: 2010,（5）
• 所属期刊栏目: Fiber Optics and Optical Communications
• 页码范围: 468-470
• 页数: 3页
• 分类号: TN761 TM923.61
• 语种: 英文

摘要

An approach to generate a flat optical comb with tunable comb spacing and adjustable comb number is proposed.In the proposed approach,a Mach-Zehnder modulator(MZM),being biased to generate two carrier-suppressed first-order sidebands,is cascaded with a phase modulator.The two optical sidebands are then sent to the phase modulator to generate two identical,but frequency-shifted phase-modulated spectra.Thanks to the complementary nature of the two adjacent comb lines in the phase-modulated spectra,the over...