Grating-coupled surface-emitting laser with a hyperbolic unstable resonator producing a stable focused output beam

被引：16

作者：

Eriksson, N ^{[1
]}

Modh, P ^{[1
]}

Larsson, A ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Microelect, Chalmers & Photon Lab, Microtechnol Ctr, SE-41296 Gothenburg, Sweden

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1999年 / 11卷 / 11期

关键词：

holographic optical components; laser beam focusing; optical planar waveguide couplers; semiconductor lasers; surface-emitting lasers;

D O I：

10.1109/68.803047

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 grating-coupled surface-emitting semiconductor laser has been integrated with a focusing diffractive beam forming element. A hyperbolic unstable resonator is used to introduce mode discrimination and suppress filamentation in a broad geometry, resulting in a 200-mu m-wide coherent output. The light is focused 500 mu m above the laser surface to a spot size of 5 x 7 mu m A remarkable beam stability is observed with very small spot size variation and beam-steering up to three times the threshold current under continuous operation.

引用

页码：1366 / 1368

页数：3

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