Study on the Effect of Laser Cavity Surface Temperature at 550 K High Temperature

YANG Zhen-qiang; JIA Hua-yu; SUN Yuan-xin; LUO Biao

doi:10.13756/j.gtxyj.2023.01.008

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Study on the Effect of Laser Cavity Surface Temperature at 550 K High Temperature

更新时间：2023-01-16

- Study on the Effect of Laser Cavity Surface Temperature at 550 K High Temperature
- Study on Optical Communications Issue 1, Pages: 63-67(2023)
- 作者机构：
  
  1.太原理工大学　电气与动力工程学院，太原　030000
  2.武汉光迅科技股份有限公司，武汉　430074
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2023.01.008
  CLC： TN242
- Published：10 February 2023，
  
  Received：25 April 2022，
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杨振强，贾华宇，孙元新，等.550K高温下激光器腔面温度的影响研究[J].光通信研究，2023(1)：63-67

YANG Z Q, JIA H Y, SUN Y X, et al.Study on the Effect of Laser Cavity Surface Temperature at 550K High Temperature[J]. Study on Optical Communications, 2023(1):63-67
杨振强，贾华宇，孙元新，等.550K高温下激光器腔面温度的影响研究[J].光通信研究，2023(1)：63-67 DOI： 10.13756/j.gtxyj.2023.01.008.

YANG Z Q, JIA H Y, SUN Y X, et al.Study on the Effect of Laser Cavity Surface Temperature at 550K High Temperature[J]. Study on Optical Communications, 2023(1):63-67 DOI： 10.13756/j.gtxyj.2023.01.008.

摘要

针对激光器长期高温工作时腔面温度急剧升高产生灾变性光学损伤（COD）的问题，文章提出在半导体激光器腔面处加入Al

膜和陶瓷隔热共同作用，其可以降低激光器腔面温度，防止COD的产生。文章首先建立了半导体激光器简化模型分析固体传热。然后对550 K高温下无镀膜无隔热结构、有镀膜无隔热结构、无镀膜有隔热结构及镀膜与隔热结构共同作用时激光器模型的腔面温度进行仿真。其中镀膜选用Al

，隔热结构选用陶瓷隔热，腔面材料选用GaAs，热沉选用Cu热沉，接触层选用AlGaAa。4组对比实验结果表明，镀膜与隔热结构共同作用时，能将激光器的腔面温度控制在393.15 K以下。550 K高温在激光器腔面处镀膜和隔热结构双重作用下，能够有效防止COD产生，提高激光器的使用寿命。

Abstract

In order to solve the problem of Catastrophic Optical Damage (COD) caused by the rapid rise of the cavity surface temperature during the long-term high temperature operation of the laser

it is proposed that the addition of Al

coating and the thermal insulation structure together at the semi-conductor laser surface

it can reduce the temperature of laser cavity surface and prevent the generation of COD. First

a simplified semi-conductor laser model is established to analyze solid heat transfer. Then

the cavity surface temperature of the laser model is simulated at 550 K when there is no coating and no insulation structure

coating and no insulation structure

no coating and insulation structure

and when the coating and insulation structure act together

the ceramic heat insulation is used in the heat insulation structure

GaAs is used in the cavity surface material

Cu is used in the heat sink and AlGaAs is used in the contact layer. The results of 4 groups of contrast experiments show that the temperature of the cavity surface can be controlled below 393.15 K when the coating and the thermal insulation structure act together. 550 K high temperature in the laser cavity surface coating and thermal insulation structure under the dual protection

can effectively prevent the generation of COD

so that the life of the laser can be improved.

关键词

半导体激光器灾变性光学损伤镀膜隔热结构

Keywords

semiconductor laserCODcoatingthermal insulation structure

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