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

被引：0
|
作者：
Bewley, W.W. [1 ]
Felix, C.L. [1 ]
Vurgaftman, I. [1 ]
Bartolo, R.E. [1 ]
Lindle, J.R. [1 ]
Meyer, J.R. [1 ]
Lee, H. [2 ]
Martinelli, R.U. [2 ]
机构：
[1] Naval Research Laboratory, Washington, DC, United States
[2] Sarnoff Corporation, Princeton, NJ, United States
来源：
Optics and Photonics News | 2001年 / 12卷 / 12期
关键词：
Crystals - Diffraction gratings - Etching - Laser beams - Molecular beam epitaxy - Photolithography;
D O I：
10.1364/OPN.12.12.000025
中图分类号：
学科分类号：
摘要：
The mid-infrared photonic crystal distributed-feedback (PCDFB) laser with enhanced spectral purity and beam quality were discussed. Optical lithography and reactive-ion etching were found to be used to define a second-order grating with periods of 4.09 and 1.49 μm along the two rectangular axis. The analysis suggested that the PCDFB configuration enhances the optical coherence of broad-stripe semiconductor lasers that emit at any wavelength.
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