Cryogenic operation of AlGaAs-GaAs vertical-cavity surface-emitting lasers at temperatures from 200 K to 6 K

被引:20
作者
Goncher, G
Lu, B
Luo, WL
Cheng, J
Hersee, S
Sun, SZ
Schneider, RP
Zolper, JC
机构
[1] SDL INC,SAN JOSE,CA 95134
[2] UNIV NEW MEXICO,CTR HIGH TECHNOL MAT,ALBUQUERQUE,NM 87131
[3] SANDIA NATL LABS,ALBUQUERQUE,NM 87185
关键词
D O I
10.1109/68.481102
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 demonstrate for the first time the CW performance of AlGaAs-GaAs vertical-cavity surface-emitting lasers (VCSEL's) at cryogenic temperatures from 6 K to 200 K, By detuning the cavity mode with respect to the gain peak so that optimum de lasing operation is achieved at similar to 100 K, we find that this optimum lasing performance can be maintained down to temperatures as low as 6 K. Across a broad range of temperatures from 200 K to 6 K, the minimum threshold current of a 16-mu m diameter VCSEL stayed below 4 mA, while its -3-dB modulation bandwidth increased by about 70% to 11 GHz at 6 K, and the external slope efficiency is greater than 70%.
引用
收藏
页码:316 / 318
页数:3
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