Tunable laser source, and method for preventing occurrence of mode hopping phenomenon in tunable laser source
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United States of America Patent
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Issued Date -
Dec 19, 2002
app pub date -
Jun 13, 2002
filing date -
Jun 14, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A tunable laser source for continually changing the wavelength of output light by means of changing the length of an external cavity of an external cavity-type semiconductor laser light source section includes laser diode current control section 7, 8 for controlling a drive current supplied to a laser diode 1 as section for changing the length of the external cavity for preventing occurrence of mode hopping which arises as a result of continual changes in the wavelength of output light.
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