NDLI: Phase-locked arrays of buried-ridge InP/InGaAsP diode lasers

Content Provider	IEEE Xplore Digital Library
Author	Kapon, E. Rav-Noy, Z. Margalit, S. Yariv, A.
Copyright Year	1983
Abstract	Phased-locked arrays of buried-ridge InP/InGaAsP diode lasers, emitting at 1.3 μm, were investigated both theoretically and experimentally. These arrays consist of index-guided buried-ridge lasers which are coupled via their evanescent optical fields. The field patterns and the modal gains of the array supermodes were calculated by using a simple waveguide model. The theoretical results show that buried-ridge arrays can be designed such that only the fundamental supermode is excited. In that case, the array lasers are coupled in-phase, which yields single-lobed, diffraction limited far-field patterns. The buried-ridge InP/InGaAsP arrays were grown by liquid phase epitaxy. These arrays exhibited single-lobed beams less than 4° in width up to more than twice the threshold current. Comparison of the measured field patterns and the calculated ones indicated that these arrays oscillated mainly in the fundamental supermode.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	919
Ending Page	925
Page Count	7
File Size	791487
File Format	PDF
ISSN	07338724
Volume Number	4
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1986-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phased arrays Optical arrays Semiconductor laser arrays Indium phosphide Diode lasers Laser modes Laser theory Waveguide lasers Optical coupling Optical waveguides
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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