50 MW CW-OPERATED SINGLE-MODE SURFACE-EMITTING ALGAAS LASERS WITH 45-DEGREES TOTAL REFLECTION MIRRORS

被引:14
作者
GFELLER, FR
BUCHMANN, P
DATWYLER, K
REITHMAIER, JP
VETTIGER, P
WEBB, DJ
机构
[1] IBM Research Division, Zurich Research Laboratory
关键词
Laser arrays - Ridge lasers - Surface-emitting lasers;
D O I
10.1109/68.145242
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 report on the fabrication and testing of surface-emitting AlGaAs 3.5-mu-m ridge lasers with etched mirrors and 45-degrees internal deflectors. The 45-degrees mirror coupling coefficient and the resulting threshold current penalty have been analyzed theoretically and experimentally. A surface-emitted optical power of 50 mW CW at 26 mA threshold current and external differential efficiency of 57% has been achieved in lateral fundamental-mode operation. The optical power density of 14 mW CW per micrometer ridge width is the highest reported to date and produces two-dimensional surface-emitting laser arrays of diffraction-limited beam quality suitable for optical storage applications.
引用
收藏
页码:698 / 700
页数:3
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