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Room temperature photonic crystal defect lasers at near-infrared wavelengths in InGaAsP

Painter, O. J. and Husain, A. and Scherer, A. and O'Brien, J. D. and Kim, I. and Dapkus, P. D. (1999) Room temperature photonic crystal defect lasers at near-infrared wavelengths in InGaAsP. Journal of Lightwave Technology, 17 (11). pp. 2082-2088. ISSN 0733-8724. http://resolver.caltech.edu/CaltechAUTHORS:PAIjlt99

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Abstract

Room temperature lasing from optically pumped single defects in a two-dimensional (2-D) photonic bandgap (PBG) crystal is demonstrated. The high-Q optical microcavities are formed by etching a triangular array of air holes into a half-wavelength thick multiquantum-well waveguide. Defects in the 2-D photonic crystal are used to support highly localized optical modes with volumes ranging from 2 to 3 (lambda/2n)(3). Lithographic tuning of the air hole radius and the lattice spacing are used to match the cavity wavelength to the quantum-well gain peak, as well as to increase the cavity Q. The defect lasers were pumped with 10-30 ns pulses of 0.4-1% duty cycle. The threshold pump power was 1.5 mW (approximate to 500 μW absorbed).


Item Type:Article
Additional Information:© Copyright 1999 IEEE. Reprinted with permission. Manuscript received July 28, 1999; revised August 27, 1999. This work was supported by the Army Research Office under Contracts DAAH04-96-1-0389 and DAAD19-99-1-0121, and the NSF under Contract ECS-9632937. O. J. Painter would like to thank K. Vahala and T. Yoshie for many helpful discussions and R. Johnson for his help in setting up the experimental apparatus.
Subject Keywords:InGaAsP; microcavities; photonic crystals; quantum-well laser; semiconductor device fabrication; spontaneous emission control
Record Number:CaltechAUTHORS:PAIjlt99
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:PAIjlt99
Alternative URL:http://dx.doi.org/10.1109/50.802998
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1478
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:23 Jan 2006
Last Modified:26 Dec 2012 08:44

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