Improved performance of quantum cascade lasers through a scalable, manufacturable epitaxial-side-down mounting process

被引:61
作者
Tsekoun, A
Go, R
Pushkarsky, M
Razeghi, M
Patel, CKN
机构
[1] Pranalytica Inc, Santa Monica, CA 90401 USA
[2] Northwestern Univ, Ctr Quantum Devices, Evanston, IL 60208 USA
[3] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA
关键词
continuous wave operation; room temperature operation; high-power lasers; mid-IR semiconductor lasers;
D O I
10.1073/pnas.0600859103
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
We report substantially improved performance of high-power quantum cascade lasers (QCLs) by using epitaxial-side-down mounting that provides superior heat dissipation properties. We used aluminum nitride as the heatsink material and gold-tin eutectic solder. We have obtained continuous wave power output of 450 mW at 20 degrees C from mid-IR QCLs. The improved thermal management achieved with epitaxial-side-down mounting combined with a highly manufacturable and scalable assembly process should permit incorporation of mid-IR QCLs in reliable instrumentation.
引用
收藏
页码:4831 / 4835
页数:5
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