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Updated: Jan 8, 2026

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通过空间选择的Bloch模式,在光子晶体线缺陷腔中进行单模激光和光谱缩小

Shu-Ning Ding, Ling-Fang Wang, Xiao-Tian Cheng

|December 19, 2025

概括

研究人员开发了一种在光子晶体 (PhC) 微腔激光器中单模激光的方法,该方法是通过空间抽取布洛赫模式. 这种技术可以精确控制PhC激光输出,提高集成潜力.

科学领域:

光子学是指光子学的使用方法.
激光物理激光物理
材料科学材料科学材料科学

背景情况:

光子晶体 (PhC) 微腔激光器对于芯片上的光源至关重要.
在PhC微腔中缓慢光效应会导致模式竞争和多模式激光,阻碍密集集成.
当前的PhC激光技术在实现单模式操作方面面临挑战.

研究的目的:

从理论上验证一个方案,以实现单模激光在PhC线路缺陷空洞激光器.
通过光学干扰来证明特定的布洛赫模式的空间送.
为了提高PhC激光器的性能特性.

主要方法:

一个新技术方案的理论验证.
使用光学干扰进行布洛赫模式的空间送.
分析PhC微腔内模式竞争和选择.

主要成果:

在PhC线缺陷腔激光器中成功展示了单模激光.
实现侧模式抑制比 (SMSR) 超过30dB.
由于增强的光物相互作用,展示了改进的线宽和噪声特性.

结论:

提出的布洛赫模式选择方案是操纵PhC微腔激光器的可行工具.
这种方法克服了多模式激光的问题,为PhC激光器的更密集集成铺平了道路.
该技术提供了对激光输出的增强控制,这对于先进的光子集成电路至关重要.

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相关概念视频

Standing Waves in a Cavity

Standing Waves in a Cavity

A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by: