Generation of Microwave Frequency Combs Based on Dual-Frequency Injected Optoelectronic Oscillator

• DOI: 10.1109/jlt.2024.3395429
• Publication Date: 2024-04-30T19:39:45Z
• Authors: Huiyun Tang; Zexuan Kong; Fangping Li; Xiaoyu Chen; Ming Li; Ninghua Zhu; Wei Li
• Keywords: Injection locking; Center frequency; Comb generator; Frequency spectrum; Optical frequency comb

We report a dual-frequency actively mode-locked optoelectronic oscillator (AML-OEO) which can generate MFCs with more comb lines and wider spectrum bandwidth. For traditional single-frequency AML-OEO, normally, there is tradeoff between bandwidth lines. In addition, our also be flexibly tuned by adjusting the frequency of injection signals. The proposed scheme theoretically analyzed experimentally demonstrated. same line spacing 661.01 kHz, experiment results show that increase from 7 (single-frequency injection) to 73 (dual-frequency within power variations ± 10 dB. Moreover, increases ∼9 times.