外腔面发射激光器自发辐射谱的热特性

詹小红; 朱仁江; 蒋茂华; 胡平; 崔玉亭; 张鹏

doi:10.7510/jgjs.issn.1001-3806.2016.04.032

外腔面发射激光器自发辐射谱的热特性

1.
重庆师范大学物理与电子工程学院, 重庆 400047;
2.
重庆师范大学重庆市高校光电材料与工程重点实验室, 重庆 400047;
3.
重庆师范大学重庆市光电功能材料重点实验室, 重庆 400047;
4.
四川机电职业技术学院材料工程系, 攀枝花 617000

作者简介: 詹小红(1991-),女,硕士研究生,现主要从事激光单元器件及应用的研究.

通讯作者: 张鹏, zhangpeng2010@cqnu.edu.cn

基金项目:
重庆市教委科学技术研究基金资助项目(KJJ130630)
中图分类号: TN248.4

Thermal characteristics of spontaneous emission spectra from external-cavity surface-emitting lasers

1.
College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 400047, China;
2.
High Education Key Laboratory of Optoelectronic Materials and Engineering Chongqing, Chongqing Normal University, Chongqing 400047, China;
3.
Key Laboratory of Optoelectronic Functional Materials Chongqing, Chongqing Nornal University, Chongqing 400047, China;
4.
Department of Materials Engineering, Sichuan Electromechanical Institute of Vocation and Technology, Panzhihua 617000, China

Corresponding author: ZHANG Peng, zhangpeng2010@cqnu.edu.cn

CLC number: TN248.4

摘要: 热效应是限制外腔面发射激光器(VECSEL)输出功率和光束质量的主要原因。为了优化VECSEL增益芯片有源区量子阱的设计,降低激光器的热效应,提高斜效率和输出功率,采用光致荧光谱方法,对设计波长980nm VECSEL自发辐射谱的热特性进行了实验研究。取得了不同热沉温度下边发射和面发射谱随温度的变化数据。结果表明,反映有源区量子阱自身特性的边发射谱峰值波长随温度升高的红移速率是0.5nm/K,而受到增益芯片多层结构调制的面发射谱峰值波长随温度升高的红移速率只有0.1nm/K;由于受到VECSEL增益芯片中微腔的限制,面发射谱分离为多个模式,分别与微腔的腔模对应。可见对量子阱的发射波长及微腔腔长做预偏置优化处理,可以显著改善激光器的输出性能。
- 激光器 /
- 外腔面发射激光器 /
- 光致荧光谱 /
- 热特性
Abstract: Thermal effect is the main reason limiting output power and beam quality of vertical-external-cavity surface-emitting lasers (VECSELs). To optimize the quantum design in active regions of gain chip, decrease thermal effect and upgrade slope efficiencies and output laser power, thermal characteristics of a VECSEL at 980nm wavelength were investigated experimentally by means of photoluminescence. The edge-emitting and surface-emitting spectra at different heatsink temperatures were obtained. The results indicate that the redshift rate of the edge-emitting spectra, which revels the intrinsic properties of quantum wells in active region, is 0.5nm/K with increasing temperature, while the redshift rate of the surface-emitting spectra, which are modulated by multiple-layer structure of the gain chip, is only 0.1nm/K with increasing temperature. The experiments also show that the surface-emitting spectra are split into several modes because of the restriction from the micro-cavities in gain chips of VECSELs. In the design of VECSEL gain chip, according to the above thermal characteristics of VECSELs, performance of a laser could be improved significantly by prebiasing emission wavelengths of quantum wells and cavity lengths of micro-cavities.
- lasers /
- external-cavity surface-emitting laser /
- photoluminescence spectrum /
- thermal characteristic

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外腔面发射激光器自发辐射谱的热特性

作者简介: 詹小红(1991-),女,硕士研究生,现主要从事激光单元器件及应用的研究.

通讯作者: 张鹏, zhangpeng2010@cqnu.edu.cn

Thermal characteristics of spontaneous emission spectra from external-cavity surface-emitting lasers

Corresponding author: ZHANG Peng, zhangpeng2010@cqnu.edu.cn

计量

外腔面发射激光器自发辐射谱的热特性

通讯作者: 张鹏, zhangpeng2010@cqnu.edu.cn

作者简介: 詹小红(1991-),女,硕士研究生,现主要从事激光单元器件及应用的研究

English Abstract

Thermal characteristics of spontaneous emission spectra from external-cavity surface-emitting lasers

Corresponding author: ZHANG Peng, zhangpeng2010@cqnu.edu.cn

全文HTML

目录

留言板

外腔面发射激光器自发辐射谱的热特性

作者简介: 詹小红(1991-),女,硕士研究生,现主要从事激光单元器件及应用的研究.

通讯作者: 张鹏, zhangpeng2010@cqnu.edu.cn

Thermal characteristics of spontaneous emission spectra from external-cavity surface-emitting lasers

Corresponding author: ZHANG Peng, zhangpeng2010@cqnu.edu.cn

计量

出版历程

外腔面发射激光器自发辐射谱的热特性

通讯作者: 张鹏, zhangpeng2010@cqnu.edu.cn

作者简介: 詹小红(1991-),女,硕士研究生,现主要从事激光单元器件及应用的研究

English Abstract

Thermal characteristics of spontaneous emission spectra from external-cavity surface-emitting lasers

Corresponding author: ZHANG Peng, zhangpeng2010@cqnu.edu.cn

全文HTML

目录