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The Effects Of Fabricational Variations On Quantum Wire Laser Gain Spectra And Performance

Zarem, Hal and Vahala, Kerry and Yariv, Amnon (1989) The Effects Of Fabricational Variations On Quantum Wire Laser Gain Spectra And Performance. In: Laser Diode Technology and Applications. Proceedings of SPIE. No.1043. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 184-191. ISBN 0819400785.

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The effects of fabricational variations on the gain spectra of quantum wires are calculated within the limits of first order perturbation theory. Gain spectra and density of states for 50Å radius and 150Å radius cylindrical quantum wires are calculated and plotted for several different fabrication tolerances. The wave functions for a finite, cylindrical potential are calculated and a quasi-critical radius, below which the carriers are weakly confined by the potential, is established. This sets a lower limit on quantum wire size. Upper limits on the size of quantum wells, quantum wires, and quantum boxes are also discussed. The threshold current and differential gain of quantum wire lasers and quantum wire array lasers are calculated. These calculations indicate a possible reduction in threshold current of one to two orders of magnitude as compared to the best quantum well lasers to date.

Item Type:Book Section
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Vahala, Kerry0000-0003-1783-1380
Additional Information:© 1989 Society of Photo-Optical Instrumentation Engineers (SPIE). Two of us (H.Z. and A.Y.) would like to acknowledge the support of ONR and DARPA. One of us (K.V.) would like to acknowledge the support of ONR.
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Series Name:Proceedings of SPIE
Issue or Number:1043
Record Number:CaltechAUTHORS:20180710-150733714
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Official Citation:Hal Zarem, Kerry Vahala, Amnon Yariv, "The Effects Of Fabricational Variations On Quantum Wire Laser Gain Spectra And Performance", Proc. SPIE 1043, Laser Diode Technology and Applications, (22 June 1989); doi: 10.1117/12.976370;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87729
Deposited By: George Porter
Deposited On:10 Jul 2018 22:28
Last Modified:15 Nov 2021 20:51

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