Widely-tunable laser apparatus
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United States of America Patent
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Jun 3, 2008
Grant Date -
Jul 19, 2007
app pub date -
Jan 12, 2007
filing date -
Jan 13, 2006
priority date (Note) -
Expired
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Abstract
A widely-tunable laser apparatus comprises a plurality of tunable lasers having different ranges that overlap to encompass a desired operating range of wavelengths (for example from 1250 nm to 1650 nm) of the widely-tunable laser apparatus. The tunable lasers are tunable synchronously and selectively with their respective outputs connected in common to sweep the output of the widely-tunable laser apparatus substantially continuously over said operating range. The tunable lasers share the same tuning means which has a plurality of independent channels, each for light from a respective one of the tunable lasers.
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