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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引用次数: 0

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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调制不稳定性与布里渊光纤谐振腔光梳产生之间的相互作用：级联布里渊激光梳和布里渊-克尔梳

我们演示了在布里渊光纤谐振腔中使用调制泵浦技术形成两种不同类型的光频率梳。一种是由于级联布里渊散射而产生的布里渊激光梳。后者是由于四波混频而形成的布里渊-克尔频率梳（BKC）。研究了调制不稳定性（MI）对这两种不同状态下梳状结构的影响。在第一种情况下，梳的频率间隔由布里渊频移决定。通过改变泵浦功率，我们观察了谐振腔中磁致共振和SBS的竞争和切换。在第二种情况下，调制泵浦及其相关的侧频率作为多频率泵浦，导致BKC的产生。BKC的频率间隔可以根据泵的调制频率精确调谐。MI有助于形成BKC。在泵浦功率为1.4 W，调制频率为12 GHz的条件下，获得了覆盖30 nm以上的mi辅助BKC。我们的研究结果加深了对克尔谐振器中MI和布里渊梳之间相互作用的理解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.