Characteristics of high power Al-free quantum-well laser diode array

被引：0

作者：

Hu L. ^{[1
,2
]}

Li Z. ^{[1
,2
]}

Qin L. ^{[1
]}

Yang Y. ^{[1
,2
]}

Wang Y. ^{[1
,2
]}

Liu Y. ^{[1
]}

Wang B. ^{[3
]}

Wang L. ^{[1
]}

机构：

[1] Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun

[2] Graduate University, Chinese Academy of Sciences

[3] Department of Engineering Physics, Tsinghua University

来源：

Zhongguo Jiguang/Chinese Journal of Lasers | 2010年 / 37卷 / 02期

关键词：

Duty-cycle; Finite element method; High power; Laser diode array; Lasers; Temperature;

D O I：

10.3788/CJL20103702.0379

中图分类号：

学科分类号：

摘要：

A three dimensional finite element thermal-model is presented for a micro-channel packaged high-power Al-free quantum-well laser diode array(LDA). The influence of working conditions, such as ambient temperature, operating current and duty cycle, on the temperature of the active region is simulated in this paper. And the variety of the output characteristics of LDA working under different conditions is studied experimentally. It is found that longer time to reach steady-state, higher temperature of the active region, greater red shift of peak wavelength and threshold current, lower conversion efficiency and slope efficiency and lower output power are gained when the laser diode array works at higher ambient temperature and duty cycle. The output characteristics of the laser diode array is extrapolated when it works under the conditions of 20°C ambient temperature, 20% duty-cycle and 300 A injecting current. The results show that the output power exceeds 300 W and the conversion efficiency achieves 45% and no thermal rollover appears.

引用

页码：379 / 384

页数：5

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