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Conference Paper
Conference on Lasers and Electro-Optics
Baltimore, Maryland United States
May 31, 2009 - June 5, 2009
ISBN: 978-1-55752-869-8
CLEO Postdeadline Session II (CPDB)

Low Divergence, Single-Lobed, Surface Emission from THz Photonic-Crystal Quantum Cascade Lasers

Yannick Chassagneux, Raffaele Colombelli, Wilfried Maineult, Stefano Barbieri, Suraj P. Khanna, Edmund H. Linfield, and A. Giles Davies


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We demonstrate single-mode, single-lobed surface-emitting terahertz quantum cascade lasers employing photonic-crystal resonators. Single-lobed emission is obtained with carefully designed pi-shift, Q-factor optimization yields a maximum operating temperature of 151K and peak powers of ~7 mW.

© 2009 The Optical Society

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(230.0230) Optical devices : Optical devices
(230.5298) Optical devices : Photonic crystals
(140.5965) Lasers and laser optics : Semiconductor lasers, quantum cascade

Y. Chassagneux, R. Colombelli, W. Maineult, S. Barbieri, S. P. Khanna, E. H. Linfield, and A. G. Davies, "Low Divergence, Single-Lobed, Surface Emission from THz Photonic-Crystal Quantum Cascade Lasers," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper CPDB5.

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