Improving the modulation efficiency of high-power distributed Bragg reflector tapered diode lasers

被引：6
|
作者：
Hasler, K-H [1 ]
Sumpf, B. [1 ]
Adamiec, P. [1 ]
Fricke, J. [1 ]
Wenzel, H. [1 ]
Erbert, G. [1 ]
Traenkle, G. [1 ]
机构：
[1] Ferdinand Braun Inst Hochstfrequenztech, D-12489 Berlin, Germany
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2011年 / 102卷 / 01期
关键词：
1060; NM; AMPLIFIER;
D O I：
10.1007/s00340-010-4226-0
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Different measures to improve the modulation efficiency of a distributed Bragg reflector tapered diode laser emitting at 1060 nm were investigated. Due to the 6-mm long cavity, the device reached an output power of 10 W with a nearly diffraction-limited beam quality. The input currents to the ridge-waveguide (RW) and tapered gain-region sections can be independently controlled. This allows a low-current modulation of the optical output power in the Watt range. Under optimized quasi-static conditions the power could be modulated between 0.2 and 3.1 W (4.8 W) by a variation of the RW current between 0 and 50 mA (350 mA). Due to the integrated 6th order surface Bragg grating the emission wavelength remains within the spectral range of 80 pm.
引用
收藏
页码：43 / 47
页数：5
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