Tunable frequency-multiplying optoelectronic oscillator based on a dual-parallel Mach-Zehnder modulator incorporating a phase-shifted fiber Bragg grating

• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2020,（6）
• 所属期刊栏目: Devices
• 页码范围: 405-409
• 页数: 5页
• 语种: 英文
• DOI: 10.1007/s11801-020-9172-4

摘要

A tunable frequency-multiplying optoelectronic oscillator (OEO) based on a dual-parallel Mach-Zehnder modulator(DPMZM) is proposed and experimentally demonstrated.In the proposed system,the tunable fundamental microware signal is generated by a tunable optoelectronic oscillator incorporating a phase-shifted fiber Bragg grating (PS-FBG).By adjusting the DC bias of the DPMZM,the frequency-doubled microwave signal with a tunable frequency range from 11 GHz to 20 GHz and the frequency-quadrupled microwave signal with a tunable frequency range from 22.5 GHz to 26GHz are generated.The phase noises of the fundamental,frequency-doubled and frequency-quadrupled signals at 10 kHz offset frequency are-105.9 dBc/Hz,-103.3 dBc/Hz and-86.2 dBc/Hz,respectively.