Negative differential resistance and pulse instabilities in minimalized quantum cascade laser structures

We study high performing mid-infrared quantum cascade lasers with highly discretized injector regions. We observe negative differential resistance features of ~2V that persist to room temperature and pulse instabilities below 180K.

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Bibliographic Details
Published in:	2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum electronics and Laser Science Conference pp. 1 - 2
Main Authors:	Franz, K.J., Raftery, J.J.J., Liu, P.Q., Hoffman, A.J., Escarra, M.D., Howard, S.S., Dikmelik, Y., Khurgin, J.B., Xiaojun Wang, Jen-Yu Fan, Gmachl, C.
Format:	Conference Proceeding
Language:	English
Published:	IEEE 01-05-2009
Subjects:	(140.5965) Semiconductor lasers (250.55900) Quantum-well Electrons Energy states Nonlinear optics Optical design Optical pulses Optical superlattices Power lasers quantum cascade Quantum cascade lasers Quantum well lasers Temperature wire and -dot devices
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Description
Summary:	We study high performing mid-infrared quantum cascade lasers with highly discretized injector regions. We observe negative differential resistance features of ~2V that persist to room temperature and pulse instabilities below 180K.
ISSN:	2160-9004
DOI:	10.1364/CLEO.2009.CThL5