Semiconductor optical device and module using the same
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United States of America Patent
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Issued Date -
Dec 7, 2006
app pub date -
Aug 15, 2005
filing date -
Jun 3, 2005
priority date (Note) -
Abandoned
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Abstract
A semiconductor laser device capable of providing high output power operation is provided which has a structure in which high output power and kink suppression can be simultaneously attained as well as these characteristics can be realized by a short chip length. In a waveguide structure of an MMI laser diode, a taper waveguide is intentionally inserted between a single mode waveguide and a multimode waveguide, and further, a single mode waveguide is used as a passive waveguide. These individual units or combination thereof can solve the above-described problems.
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