Cascaded GI-fiber chips with a wedge-shaped end for the coupling betwee n an SMF and a high-power LD with large astigmatism

被引：29

作者：

Yoda, H ^{[1
]}

Endo, T ^{[1
]}

Shiraishi, K ^{[1
]}

机构：

[1] Utsunomiya Univ, Fac Engn, Utsunomiya, Tochigi 3218585, Japan

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2002年 / 20卷 / 08期

关键词：

electromagnetic fields; lenses; optical fiber applications; optical fibers; optical fiber devices; optical coupling; semiconductor lasers;

D O I：

10.1109/JLT.2002.800795

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：

A novel lensed fiber for high-efficiency coupling between an single-mode fiber (SMIT) and a high-power laser. diode (LD) with large astigmatism of 176 mum is proposed and demonstrated. We experimentally confirmed that the proposed lensed fiber had a minimum coupling loss of 2.5 dB including a reflection loss of 0.3 dB at both ends of the fiber. In addition the new configuration had a long working distance of 67 mum. We also investigated the tolerance characteristics for various displacements.

引用

页码：1545 / 1548

页数：4

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