Brillouin Lasing in a Silica Microsphere With Allowance for Rayleigh Scattering

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2024-08-15 DOI:10.1109/LPT.2024.3444328

Elena A. Anashkina;Alexey V. Andrianov

引用次数: 0

Abstract

We demonstrate cascade Brillouin lasing in a silica microsphere with 11-GHz spectral spacing between neighboring orders. Using unidirectional pump, up to three Brillouin cascades are attained in both forward and backward spectra due to Rayleigh scattering. We show experimentally and numerically that for weak and strong intermode coupling, the system behavior differs. For weak coupling, first-order Brillouin waves are mainly generated in the backward direction while second-order waves are mainly observed in the forward one. For strong coupling, powers for each order are the same in both directions.

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允许瑞利散射的硅微球中的布里渊激光

我们在相邻阶次之间具有 11 千兆赫光谱间隔的二氧化硅微球中演示了级联布里渊激光。利用单向泵浦，由于瑞利散射，在前向和后向光谱中最多可实现三个布里渊级联。我们通过实验和数值计算表明，对于弱和强的模式间耦合，系统行为是不同的。对于弱耦合，一阶布里渊波主要在后向产生，而二阶波主要在前向观测到。对于强耦合，每个阶次的功率在两个方向上都是相同的。

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.