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MODAL REFLECTION OF QUARTER-WAVE MIRRORS IN VERTICAL-CAVITY LASERS

被引：81
作者：
BABIC, DI
CHUNG, YC
DAGLI, N
BOWERS, JE
机构：
[1] Department of Electrical and Computer Engineering, University of California, Santa Barbara
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 1993年 / 29卷 / 06期
关键词：
D O I：
10.1109/3.234458
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：
The cavities of vertical semiconductor lasers have lengths of the order of a few wavelengths and typically involve quarter-wave mirror or bulk sections with no lateral guiding. Very high plane-wave reflection coefficients can be obtained with practical semiconductor quarter-wave mirrors, but for beams of finite width, the reflection coefficient of a mirror with no lateral guiding and hence the finesse of cavities that use such structures will be limited by diffraction loss. We analytically and numerically study the modal reflection of practical semiconductor quarter-wave mirrors. We introduce a quantity called the diffraction range of a quarter-wave mirror as a means of exact analytical comparison between infinite lossless mirrors (and approximate comparison for finite mirrors) in the Fresnel diffraction limit. The exact modal reflection coefficient for an arbitrary incident mode pattern is determined by vector plane wave decomposition. We study the modal reflection coefficients of two representative semiconductor quarter-wave mirrors used in vertical-cavity laser technology: AlAs/GaAs and InGaAsP/InP.
引用
收藏
页码：1950 / 1962
页数：13
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