A membrane external-cavity surface-emitting laser (MECSEL) with emission around 825nm

被引：0

作者：

Phung, Hoy-My ^{[1
]}

Kahle, Hermann ^{[1
]}

Penttinen, Jussi-Pekka ^{[1
]}

Rajala, Patrik ^{[1
]}

Ranta, Sanna ^{[1
]}

Guina, Mircea ^{[1
]}

机构：

[1] Tampere Univ, Fac Engn & Nat Sci, Phys Unit Photon, Optoelect Res Ctr ORC, Korkeakoulunkatu 3, Tampere 33720, Finland

来源：

VERTICAL EXTERNAL CAVITY SURFACE EMITTING LASERS (VECSELS) X | 2020年 / 11263卷

基金：

芬兰科学院;

关键词：

VECSEL; MECSEL; semiconductor laser; GaInAsP; short 8XXnm region; thermal lensing; SiC heatspreaders; HIGH-POWER; THERMAL-CONDUCTIVITY; REDUCTION; OPERATION; NM;

D O I：

10.1117/12.2545980

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A MECSEL emitting around 825nm is reported. With a tuning range from 807nm to 840 nm, the MECSEL extends the coverage of high beam quality semiconductor based lasers in the short 8XXnm region and opens new perspectives for scanning ground-based water-vapor differential absorption lidar. 1.4W maximum output power has been achieved at room temperature operation and at 12.5W absorbed power using a 532 nm emitting pump laser. The beam quality has been investigated by M-2 measurements at different pump power. The effect from a growing pump mode and thermal lensing has been observed as the beam divergence angle decreases and the beam waist radius enlargens with increasing pump power.

引用

页数：8

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