Publication:

High Power Thermoelectrically Cooled and Uncooled Quantum Cascade Lasers With Optimized Reflectivity Facet Coatings

Thumbnail Image

Open/View Files

Primary Maulini_APL_95_151112_2009.pdf (109.1 KB)

Date

2009

Authors

Published Version

10.1063/1.3246799

Journal Title

Journal ISSN

Volume Title

Publisher

American Institute of Physics
The Harvard community has made this article openly available. Please share how this access benefits you.

Research Projects

Organizational Units

Journal Issue

Citation

Maulini, Richard, Arkadiy Lyakh, Alexei Tsekoun, Rowel Go, Christian Pflügl, Laurent Diehl, Federico Capasso, and C. Kumar N. Patel. 2009. High power thermoelectrically cooled and uncooled quantum cascade lasers with optimized reflectivity facet coatings. Applied Physics Letters (95)15: 151112.

Abstract

We present a method of preserving the device wall-plug efficiency by adjusting mirror losses with facet coatings for longer cavity quantum cascade lasers. An experimental study of output power and wall-plug efficiency as functions of mirror losses was performed by varying the front facet coating reflectivity with a high-reflectivity-coated rear facet. The use of optimized reflectivity coatings on 7-mm-long chips resulted in continuous-wave output power of 2.9 W at 293 K for thermoelectrically cooled devices mounted on AlN submounts and average and continuous-wave output power in excess of 1 W for uncooled devices emitting at 4.6 µm.

Description

Other Available Sources

Research Data

Keywords

Terms of Use

This article is made available under the terms and conditions applicable to Other Posted Material (LAA), as set forth at Terms of Service

URI

http://nrs.harvard.edu/urn-3:HUL.InstRepos:3426316

Collections

FAS Scholarly Articles

Endorsement

Review

Supplemented By

Related Stories