High power continuous wave operation of mid-infrared quantum cascade lasers

Author

Tredicucci, Alessandro ; Faist, Jérôme ; Capasso, Federico ; Sivco, Deborah L. ; Baillargeon, James N. ; Hutchinson, Albert L. ; Cho, Alfred Y.

Author_Institution

Lucent Technol., AT&T Bell Labs., Murray Hill, NJ, USA

Volume

1

fYear

1997

fDate

10-13 Nov 1997

Firstpage

211

Abstract

In recent years laser emission from unipolar quantum cascade (QC) structures has been demonstrated in a wide range of wavelengths and temperatures. Continuous wave (CW) operation has also been reported, but with limited output powers (a few tens of mW). We present here the results obtained on a mid-infrared QC laser, whose design has been carefully optimized in order to maximize the injection efficiency and the gain. The device employs a three-well vertical-transition active region with a CW light modulation

Keywords

infrared sources; laser transitions; optimisation; quantum well lasers; 5.1 mum; CW light modulation; CW operation; high power continuous wave operation; injection efficiency; laser emission; limited output powers; mid-infrared QC laser; mid-infrared quantum cascade lasers; optimized; quantum well lasers; three-well vertical-transition active region; unipolar quantum cascade structures; Current measurement; Design optimization; Electron emission; Optical design; Optical scattering; Optical waveguides; Power generation; Pulse measurements; Quantum cascade lasers; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society Annual Meeting, 1997. LEOS '97 10th Annual Meeting. Conference Proceedings., IEEE

Conference_Location

San Francisco, CA

ISSN

1092-8081

Print_ISBN

0-7803-3895-2

Type

conf

DOI

10.1109/LEOS.1997.630590

Filename

630590