Low-dissipation 7.4-μm single-mode quantum cascade lasers without epitaxial regrowth

被引：10

作者：

Briggs, Ryan M. ^{[1
]}

Frez, Clifford ^{[1
]}

Fradet, Mathieu ^{[1
]}

Forouhar, Siamak ^{[1
]}

Blanchard, Romain ^{[2
]}

Diehl, Laurent ^{[2
]}

Pflugl, Christian ^{[2
]}

机构：

[1] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA

[2] Pendar Technol LLC, Cambridge, MA 02138 USA

来源：

OPTICS EXPRESS | 2016年 / 24卷 / 13期

关键词：

Continuous wave lasers - Infrared spectroscopy - Energy dissipation - Budget control - Electric power utilization - Distributed feedback lasers;

D O I：

10.1364/OE.24.014589

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report continuous-wave operation of single-mode quantum cascade (QC) lasers emitting near 7.4 mu m with threshold power consumption below 1 W at temperatures up to 40 degrees C. The lasers were fabricated with narrow, plasma-etched waveguides and distributed-feedback sidewall gratings clad with sputtered aluminum nitride. In contrast to conventional buried-heterostructure (BH) devices with epitaxial sidewall cladding and in-plane gratings, the devices described here were fabricated without any epitaxial regrowth processes, yet they exhibit power consumption comparable to the lowest-dissipation BH QC lasers reported to date. These low-dissipation devices are designed primarily as light sources for infrared spectroscopy instruments with limited volume, mass, and power budgets. (C) 2016 All rights reserved.

引用

页码：14589 / 14595

页数：7

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