TITLE

Novel scalloped-mirror diffraction-coupled InGaAsP/InP buried-heterostructure laser arrays

AUTHOR(S)
Yap, D.; Walpole, J. N.; Liau, Z. L.
PUB. DATE
February 1989
SOURCE
Applied Physics Letters;2/20/1989, Vol. 54 Issue 8, p687
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Diffraction-coupled arrays of InGaAsP/InP buried-heterostructure lasers are reported. These arrays, fabricated by ion beam assisted etching and mass transport, have a novel scalloped mirror at the end of the coupling section that greatly increases the coupling between stripes and reduces the feedback into the same stripe. Far-field patterns show sharply defined lobes that are as narrow as 3°. An output section with cylindrical mirrors has been incorporated into the arrays to increase the power in the central far-field lobe. Threshold currents as low as 150 mA have been obtained for eight-stripe arrays.
ACCESSION #
9830000

 

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