Broad-stripe midinfrared photonic-crystal distributed-feedback lasers with laser-ablation confinement

被引：12

作者：

Bewley, WW ^{[1
]}

Kim, CS

Kim, M

Canedy, CL

Lindle, JR

Vurgaftman, I

Meyer, JR

Muller, RE

Echternach, PM

Kaspi, R

机构：

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

[2] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[3] USAF, Res Lab, Kirtland AFB, Albuquerque, NM 87110 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 26期

关键词：

D O I：

10.1063/1.1637153

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate broad-stripe photonic-crystal distributed-feedback lasers emitting at lambda=4.4 mum. The beam quality improves dramatically when a laser ablation technique is used to eliminate parasitic Fabry-Perot-like modes, by inducing loss in the regions adjoining the pump stripe. Even though the peak of the gain spectrum never fully aligns with the grating resonance, for pulsed pumping the output beam is essentially diffraction limited up to a stripe width of 150 mum, and remains no worse than six times the diffraction limit for stripes as broad as 400 mum. (C) 2003 American Institute of Physics.

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页码：5383 / 5385

页数：3

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