Back to Search Start Over

Large area photonic crystal quantum cascade laser with 5 W surface-emitting power.

Authors :
Wang Z
Liang Y
Meng B
Sun YT
Omanakuttan G
Gini E
Beck M
Sergachev I
Lourdudoss S
Faist J
Scalari G
Source :
Optics express [Opt Express] 2019 Aug 05; Vol. 27 (16), pp. 22708-22716.
Publication Year :
2019

Abstract

Room temperature surface emission is realized on a large area (1.5 mm × 1.5 mm) photonic crystal quantum cascade laser (PhC-QCL) driven under pulsed mode, at the wavelength around 8.75 μm. By introducing in-plane asymmetry to the pillar shape and optimizing the current injection with a grid-like window contact, the maximum peak power of the PhC-QCL is up to 5 W. The surface emitting beam has a crossing shape with 10° divergence.

Details

Language :
English
ISSN :
1094-4087
Volume :
27
Issue :
16
Database :
MEDLINE
Journal :
Optics express
Publication Type :
Academic Journal
Accession number :
31510557
Full Text :
https://doi.org/10.1364/OE.27.022708