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Coupling mechanism of gain-guided integrated semiconductor laser arrays

Kapon, E. and Lindsey, C. and Katz, J. and Margalit, S. and Yariv, A. (1984) Coupling mechanism of gain-guided integrated semiconductor laser arrays. Applied Physics Letters, 44 (4). pp. 389-391. ISSN 0003-6951. doi:10.1063/1.94784.

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It is shown that a gain-guided laser array couples via propagating fields rather than the evanescent mode coupling typically responsible for directional coupling in passive (directional couplers) and active (laser array) devices. We show that these phase-locked modes exhibit an interference pattern, in the junction plane, which arises from the curvature of the phase fronts of optical fields of the interacting lasers. The experimental results are interpreted with the aid of a simple theoretical model, and the effect of the observed mode pattern on the coupling of gain-guided lasers is discussed.

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Additional Information:Copyright © 1984 American Institute of Physics. Received 21 October 1983; accepted 29 November 1983. The research described in this letter was performed jointly by the Applied Physics Department and the Jet Propulsion Laboratory, California Institute of Technology, under contracts with the Office of Naval Research, the National Science Foundation, Rockwell International, and the National Aeronautics and Space Administration. E. Kapon would like to acknowledge support of the Weizmann postdoctoral fellowship.
Funding AgencyGrant Number
Office of Naval ResearchUNSPECIFIED
National Science FoundationUNSPECIFIED
Rockwell InternationalUNSPECIFIED
Weizmann InstituteUNSPECIFIED
Subject Keywords:coupling, semiconductor lasers, gain, mode selection, mode locking
Issue or Number:4
Record Number:CaltechAUTHORS:KAPapl84b
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12233
Deposited By: Archive Administrator
Deposited On:29 Oct 2008 23:59
Last Modified:08 Nov 2021 22:26

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