Semiconductor laser array apparatus
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United States of America Patent
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Apr 18, 1989
Grant Date -
N/A
app pub date -
Oct 8, 1987
filing date -
Oct 8, 1986
priority date (Note) -
Expired
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Abstract
A semiconductor laser array apparatus comprising a semiconductor laser array device having a plurality of active waveguides in a parallel manner with an optical phase-coupling between the adjacent waveguides and an optical phase-shifting means attaining a 180.degree. phase-shift between the adjacent laser beams emitted from the adjacent waveguides of the laser array device, the phase-shifting means being disposed in the vicinity of one of the facets of the laser array device.
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