High Power Pump Laser Diodes for 2 μm Fiber Laser

被引：0
|
作者：
Pawlik, S. [1 ]
Todt, R. [1 ]
Moser, M. [1 ]
Romero, O. [1 ]
Lichtenstein, N. [1 ]
机构：
[1] II VI Laser Enterprise, CH-8045 Zurich, Switzerland
来源：
HIGH-POWER DIODE LASER TECHNOLOGY AND APPLICATIONS XII | 2014年 / 8965卷
关键词：
High power; laser diode; broad area; AlGaAs; reliability; wavelength stabilization; DFB; fiber coupling; fiber laser; pump laser; 79x; Thulium laser pumping;
D O I：
10.1117/12.2040141
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：
We report on our recent developments at II-VI Laser Enterprise of laser diode sources for the 79x nm range. High power conversion efficiency in excess of 62% was demonstrated. For high power applications like Thulium fiber laser pumping we have achieved an output power of more than 12.5W in CW operation for 94 mu m wide broad-area single-emitters. We added the functionality of wavelength stabilization to the laser diodes by using a distributed feedback grating (DFB). Locking has been obtained over the full current range between 1A and 4A tested so far with some margin for temperature variation. For efficient fiber laser pumping the laser diodes were integrated in a multi-emitter platform, achieving 38 W out of a 105 mu m fiber within 0.15 NA.
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页数：8
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