Photonic-assisted FSK signal generation based on carrier phase-shifted double sideband modulation

• 作者: Muguang Wang Yu Tang Jian Sun Jing Zhang Qi Ding Beilei Wu Fengping Yan
• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2021,（10）
• 所属期刊栏目: Microwave Photonics
• 页码范围: 109-114
• 页数: 6页
• 语种: 英文
• DOI: 10.3788/COL202119.103901

摘要

An approach to generate high-speed and wideband frequency shift keying[FSK]signals based on carrier phase-shifted double sideband[CPS-DSB]modulation is proposed and experimentally validated.The core part of the scheme is a pair of cascaded polarization-sensitive LiNbO3 Mach-Zehnder modulators and phase modulators,whose polarization directions of the principal axes are mutually orthogonal to each other.A proof-of-concept experiment is carried out,where a 0.5 Gb/s FSK signal with the carrier frequencies of 4 and 8 GHz and a 1 Gb/s FSK signal with the carrier frequencies of 8 and 16 GHz are generated successfully.