SPATIAL HOLE-BURNING AND SELF-FOCUSING IN VERTICAL-CAVITY SURFACE-EMITTING LASER-DIODES

被引：68
作者：
WILSON, GC [1 ]
KUCHTA, DM [1 ]
WALKER, JD [1 ]
SMITH, JS [1 ]
机构：
[1] UNIV CALIF BERKELEY,ELECTR RES LAB,BERKELEY,CA 94720
来源：
APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 05期
关键词：
D O I：
10.1063/1.111097
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We measure spatial hole burning in weakly index guided vertical-cavity surface-emitting laser diodes (VCSELs) by spatially and spectrally resolving the spontaneous emission near field above threshold and show that spatial holes produce a significant lensing effect. We demonstrate experimentally, and with a simple model, that in weakly index guided VCSELs, self-focusing causes the fundamental mode width to decrease with increasing output power, exacerbating the spatial hole burning problem and inducing a transition to multimode operation at relatively low powers.
引用
收藏
页码：542 / 544
页数：3
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