Finite-difference time-domain analysis of laser diodes integrated with tapered beam-expanders

被引：6
作者：
Takahashi, M [1 ]
Ohtoshi, T [1 ]
Naono, K [1 ]
机构：
[1] Hitachi Ltd, Cent Res Lab, Tokyo 1858601, Japan
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1999年 / 11卷 / 05期
关键词：
beam-expander; BPM; FDTD; laser diode; optical waveguide;
D O I：
10.1109/68.759386
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：
Waveguide properties of laser diodes integrated with horizontally tapered beam-expanders are analyzed by the finite-difference time-domain method. The taper length dependence of the radiation loss and fiber-coupling efficiency are clarified. Lower loss and higher fiber-coupling efficiency are achieved in the exponentially tapered beam-expander compared with a linearly tapered one having an equivalent length.
引用
收藏
页码：524 / 526
页数：3
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