基于极窄滤波技术的单纵模激光结构。

Single-longitudinal mode laser structure based on a very narrow filtering technique.

作者信息

Rodríguez-Cobo L, Quintela M A, Rota-Rodrigo S, López-Amo M, López-Higuera J M

机构信息

Photonics Engineering Group, Universidad de Cantabria, Av. Los Castros s/n, 39005, Santander, Spain.

出版信息

Opt Express. 2013 Apr 22;21(8):10289-94. doi: 10.1364/OE.21.010289.

DOI:10.1364/OE.21.010289

PMID:23609738

Abstract

A narrow filtering technique based on the spectral overlapping of two uniform FBGs and applied to obtain a Single Longitudinal Mode (SLM) laser is proposed and demonstrated in this work. The two FBGs are spectrally detuned to reduce their coincident reflection response narrowing the equivalent filter bandwidth. A proof-of-concept linear laser has been built and tested exhibiting SLM operation even with temperature and strain variations.

摘要

本文提出并演示了一种基于两个均匀光纤布拉格光栅（FBG）光谱重叠的窄带滤波技术，该技术用于获得单纵模（SLM）激光器。对两个FBG进行光谱失谐，以减少它们重合的反射响应，从而缩小等效滤波器带宽。已经构建并测试了一个概念验证线性激光器，即使在温度和应变变化的情况下，该激光器仍能实现单纵模工作。