Index guided semiconductor laser device
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United States of America Patent
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Aug 1, 1989
Grant Date -
N/A
app pub date -
Apr 13, 1988
filing date -
Apr 15, 1987
priority date (Note) -
Expired
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Abstract
An index guided semiconductor laser device comprising a striped optical waveguide in the active layer, at least a part of the wavegide having continuous indentations at the interface between the waveguide and the outside of the waveguide, whereby only laser light of a high-order transverse mode is radiated from the waveguide to the outside of the waveguide and only laser light of the fundamental transverse mode is propagated within the waveguide.
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