Interplay Between Modulation Instability (MI) and Optical Comb Generation in a Brillouin Fiber Resonator: Cascaded Brillouin Lasing Comb and Brillouin-Kerr Comb

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Photonics Technology Letters Pub Date : 2025-02-10 DOI:10.1109/LPT.2025.3540275

Runhui Zhu;Zhiqiang Wang;Yang Li;Rui Zhou;Zuxing Zhang

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Abstract

We have demonstrated the formation of two different types of optical frequency comb in a Brillouin fiber resonator with modulated pump technology. One is the Brillouin lasing comb (BLC) due to the cascaded Brillouin scattering. The latter is the Brillouin-Kerr frequency comb (BKC) that is formed because of the four-wave-mixing. The effect of modulation instability (MI) on the comb formation in these two different regimes is studied. In the first regime, the frequency spacing of the comb is determined by the Brillouin frequency shift. We have observed the competition and switching of MI and SBS in the resonator by changing the pump power. In the second regime, the modulated pump and its associated side frequencies serve as multiple frequency pumps, leading to the generation of BKC. The frequency spacing of BKC can be precisely tuned, depending on the modulation frequency of the pump. MI contributes to the BKC formation. Under a pump power of 1.4 W with a modulation frequency of 12 GHz, MI-assisted BKC with a spectrum covering over 30 nm is obtained. Our results deepen the understanding of the interaction between MI and Brillouin comb in Kerr resonators.

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.