Mid-infrared photonic-crystal distributed-feedback laser with enhanced spectral purity and beam quality

被引：21

作者：

Bewley, WW

Felix, CL

Vurgaftman, I

Bartolo, RE

Lindle, JR

Meyer, JR

Lee, H

Martinelli, RU

机构：

[1] USN, Res Lab, Washington, DC 20375 USA

[2] Sarnoff Corp, Princeton, NJ 08543 USA

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 20期

关键词：

D O I：

10.1063/1.1418445

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report a photonic-crystal distributed-feedback (PCDFB) laser with an antimonide type-II "W" active region. Optical lithography and dry etching were used to pattern the two-dimensional rectangular lattice with a second-order grating tilted by 20 degrees relative to the facet normal. For pulsed optical pumping, the emission line centered on lambda =4.6-4.7 mum is considerably narrower (7-10 nm) than for Fabry-Perot and angled-grating DFB (alpha -DFB) lasers fabricated from the same wafer. The PCDFB beam quality is also substantially enhanced, e.g., by a factor of 5 compared with the alpha -DFB at a pump-stripe width of 200 mum. (C) 2001 American Institute of Physics.

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页码：3221 / 3223

页数：3

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