国产化Littrow型外腔式可调谐半导体激光器

李孟倩; 江毅

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国产化Littrow型外腔式可调谐半导体激光器

激光技术 | 更新时间：2025-10-09

- 国产化Littrow型外腔式可调谐半导体激光器
- A domestic tunable external cavity diode laser with Littrow configuration
- 光学技术 2025年51卷第4期页码：479-484
- 作者机构：
  
  北京理工大学光电学院信息光子技术工业和信息化部重点实验室，北京 100081
- 作者简介：
  
  李孟倩（2000－），女，硕士研究生，从事外腔式半导体激光器研究。limengqian321@126.com
  江毅（1967－），男，教授，博士，从事光纤传感技术研究。bitjy@bit.edu.cn
- 基金信息：
  
  国家科技重大专项(J2022-V-0004-0030);国家自然科学基金(U20B2057)
- DOI：
  中图分类号： TN248.4
- 收稿：2025-02-21，
  
  修回：2025-04-23，
  
  纸质出版：2025-07-20
- 稿件说明：
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李孟倩,江毅.国产化Littrow型外腔式可调谐半导体激光器[J].光学技术,2025,51(04):479-484.

LI Mengqian,JIANG Yi.A domestic tunable external cavity diode laser with Littrow configuration[J].OPTICAL TECHNIQUE,2025,51(04):479-484.
李孟倩,江毅.国产化Littrow型外腔式可调谐半导体激光器[J].光学技术,2025,51(04):479-484. DOI：

LI Mengqian,JIANG Yi.A domestic tunable external cavity diode laser with Littrow configuration[J].OPTICAL TECHNIQUE,2025,51(04):479-484. DOI：

摘要

设计并构建了一款基于Littrow结构的国产化外腔式可调谐半导体激光器，旨在推动高性能激光器的国产化进程并满足精密光谱学、光纤传感等领域对高质量光源的需求。激光器的所有光器件均为国产，基于各组件的参数特点设计了一种紧凑型机械结构。完成搭建后，对激光器进行调试与性能优化，提高了光束质量。Littrow型外腔式可调谐半导体激光器为单纵模运转，中心波长为1580nm，波长最大调谐范围为74.06nm，调谐速度可达261.256nm/s，相干长度大于37.5m，线宽小于8MHz（0.064pm）。

Abstract

A domestic tunable external cavity diode laser based on Littrow configuration is designed and constructed

aiming to advance the localization of high-performance lasers and meet the demand for high-quality light sources in fields such as precision spectroscopy and fiber optic sensing. All optical components of this laser are made in China. A compact mechanical structure is designed based on the parameter characteristics of each component. After the completion of the construction

the laser was debugged and optimized to improve the beam quality. The Littrow tunable external cavity diode laser operates in a single longitudinal mode

with a central wavelength of 1580 nm

a maximum wavelength tuning range of 74.06 nm

a tuning speed of 261.256 nm/s

a coherence length of more than 37.5 m and a linewidth of less than 8MHz （0.064 pm）.

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references

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