Published July 15, 1983
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Journal Article
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Phase-locked InGaAsP laser array with diffraction coupling
Chicago
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Abstract
A phase-locked array of InGaAsP lasers has been fabricated for the first time. This 50-µm-wide array utilized diffraction coupling between adjacent lasers to achieve phase locking. Threshold current as low as 200 mA is obtained for arrays with 250-µm cavity length. Smooth single-lobe far-field patterns with beam divergence as narrow as 3° have been achieved.
Additional Information
Copyright © 1983 American Institute of Physics. Received 7 March 1983; accepted 27 April 1983. This work was supported by the National Science Foundation and the Office of Naval Research.Files
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