DocumentCode
3018659
Title
Beam Characteristics of Mid-IR Quantum Cascade Lasers
Author
Krishnaswami, Kannan ; Bernacki, Bruce ; Cannon, Bret ; Phillips, Mark ; Hô, Nicolas ; Allen, Paul ; Anheier, Norman
Author_Institution
Pacific Northwest Nat. Lab., Richland
fYear
2007
fDate
6-11 May 2007
Firstpage
1
Lastpage
2
Abstract
We report divergence, astigmatism and M2 measurements for 8.77 mum quantum cascade lasers. Measurements showed divergence of 62deg by 32deg FWHM plusmn 2deg and M2 values of 1.81 and 1.22 for the fast and slow axes respectively. Astigmatism at source was ~4 mum, less than half a wave.
Keywords
aberrations; laser beams; quantum cascade lasers; M2 measurements; astigmatism; divergence; emission profile; midIR quantum cascade lasers; wavelength 8.77 mum; Apertures; Detectors; Dielectric substrates; Diffraction; Indium phosphide; Laser beams; Lenses; Optical propagation; Quantum cascade lasers; Vision defects;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics, 2007. CLEO 2007. Conference on
Conference_Location
Baltimore, MD
Print_ISBN
978-1-55752-834-6
Type
conf
DOI
10.1109/CLEO.2007.4453346
Filename
4453346
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