Butt-coupling efficiency of VCSEL's into multimode fibers

被引：33
作者：
Heinrich, J [1 ]
Zeeb, E [1 ]
Ebeling, KJ [1 ]
机构：
[1] UNIV ULM,DEPT OPTOELECT,D-89069 ULM,GERMANY
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1997年 / 9卷 / 12期
关键词：
index guiding; optical fiber coupling; optical interconnects; optical waveguides; vertical-cavity surface-emitting lasers (VCSEL's);
D O I：
10.1109/68.643258
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 a detailed study on butt-coupling efficiencies of vertical-cavity surface-emitting lasers (VCSEL's) to standard graded index multimode silica fibers, Coupling efficiency strongly depends on active laser diameter as well as index guiding and transverse mode spectrum of the laser. For typical active laser diameters of 16-20-mu m coupling efficiencies of about 90% are obtained with weakly index guided proton-implanted vertical-cavity lasers (VCL's) whereas stronger index guided oxidized lasers show considerably lower coupling efficiencies between 75% and 55%, depending on driving currents.
引用
收藏
页码：1555 / 1557
页数：3
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