Thermal analysis of GaN-based laser diode mini-array

• 来源期刊: 中国物理B（英文版）
• 关键词: GaN laser diode laser diode array thermal analysis temperature distribution
• 年，卷（期）: 2018,（9）
• 页码范围: 353-358
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/27/9/094208

摘要

Thermal characteristics of multiple laser stripes integrated into one chip is investigated theoretically in this paper.The temperature pattern of the laser diode mini-array packaged in a TO-can is analyzed and optimized to achieve a uniform temperature distribution among the laser stripes and along the cavity direction.The temperature among the laser stripes varies by more than 5 K if the stripes are equally arranged,and can be reduced to less than 0.4 K if proper arrangement is designed.For conventional submount structure,the temperature variation along the cavity direction is as high as 7 K,while for an optimized trapezoid submount structure,the temperature varies only within 0.5 K.