Kapon, E. and Katz, J. and Margalit, S. and Yariv, A. (1984) Longitudinal-mode control in integrated semiconductor laser phased arrays by phase velocity matching. Applied Physics Letters, 44 (2). pp. 157-159. ISSN 0003-6951. http://resolver.caltech.edu/CaltechAUTHORS:KAPapl84a
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The spectrum of semiconductor laser arrays with separate contacts is investigated. It is demonstrated that the individual laser currents can be selected such that the array operates in a single longitudinal mode in contrast to the multimode nature of its individual constituents. Moreover, it is possible to tune the lasing frequency by varying the laser currents. Wavelength tuning range of ~50 Å, with tuning rate of ~5 Å/mA, is demonstrated. It is suggested that these spectral features, characteristic of lasers which are coupled in parallel, result from the strong frequency dependence of their spatial mode pattern near the phase-matching frequency of their coupled waveguides.
|Additional Information:||Copyright © 1984 American Institute of Physics. Received 22 August 1983; accepted 3 October 1983. The research reported in this paper was performed jointly by the Applied Physics Department, California Institute of Technology and the Jet Propulsion Laboratory, under contracts with the Office of Naval Research, the National Science Foundation, and the National Aeronautics and Space Administration. E. Kapon would like to acknowledge the support of the Weizmann post-doctoral fellowship.|
|Subject Keywords:||semiconductor lasers, tuning, frequency selection, electric currents, coupling, spatial distribution, phase velocity, optical dispersion, fabrication, mode locking, phase−matching|
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|Deposited On:||12 Nov 2008 06:56|
|Last Modified:||26 Dec 2012 10:30|
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