Theory of grating-confined broad-area lasers

被引：92

作者：

Lang, RJ ^{[1
]}

Dzurko, K ^{[1
]}

Hardy, AA ^{[1
]}

Demars, S ^{[1
]}

Schoenfelder, A ^{[1
]}

Welch, DF ^{[1
]}

机构：

[1] SDL Inc, San Jose, CA 95134 USA

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 1998年 / 34卷 / 11期

关键词：

D O I：

10.1109/3.726614

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：

Angled-distributed-feedback semiconductor lasers have demonstrated 1-W diffraction-limited collimated output from a broad-area aperture. We present the first theoretical analysis of the modes of these devices, explaining their principle of operation and the reasons for their high spatial mode quality. A transfer matrix analysis is presented that can describe the general class of grating-guided waveguides with either finite and/or infinite grating boundaries. Lateral grating-confined broad-area waveguides are shown to have extremely high spatial mode selectivity. The theory is applied to describe the new angled-grating distributed feedback laser (a-DFB), predicting a broad near-Gaussian near held and a collimated diffraction-limited far field, in good agreement with experiment.

引用

页码：2196 / 2210

页数：15

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