Tunable multi-frequency microwave signal generation in optoelectronic oscillator based on directly modulated laser

Chengzhen Meng; Yali Zhang; Juncheng Li; Zhen Zeng; Zhiyao Zhang; Shangjian Zhang; Yong Liu

doi:10.1117/12.3036462

8 November 2024 Tunable multi-frequency microwave signal generation in optoelectronic oscillator based on directly modulated laser

Chengzhen Meng, Yali Zhang, Juncheng Li, Zhen Zeng, Zhiyao Zhang, Shangjian Zhang, Yong Liu

Author Affiliations +

Proceedings Volume 13233, Semiconductor Lasers and Applications XIV; 1323303 (2024) https://doi.org/10.1117/12.3036462
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

In this paper, we propose an Optoelectronic Oscillator (OEO) based on a Directly Modulated Laser (DML) to generate multi-frequency microwave signals. The proposed OEO features in a DML with no external modulator in the loop, an electrical mixer to provide the multi-frequency injection signals, and a two-channel electrical filter bank to choose the desired oscillation modes. The generated multi-frequency microwave signals have excellent performance in the Side Mode Suppression Ratio (SMSR), phase noise, tunability and coherence. In the proof-of-concept experiment, triple-frequency microwave signals are demonstrated with the frequency tunability of 8 - 12 GHz, and the SMSR and phase noise can be up to 53 dB and -120 dBc/Hz @ 10 kHz, respectively. Moreover, quintuple- and septuple-frequency microwave signals are also successfully generated.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chengzhen Meng, Yali Zhang, Juncheng Li, Zhen Zeng, Zhiyao Zhang, Shangjian Zhang, and Yong Liu "Tunable multi-frequency microwave signal generation in optoelectronic oscillator based on directly modulated laser", Proc. SPIE 13233, Semiconductor Lasers and Applications XIV, 1323303 (8 November 2024); https://doi.org/10.1117/12.3036462

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KEYWORDS

Microwave radiation

Signal generators

Tunable filters

Modulation

Oscillators

Optoelectronics

Single mode fibers

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