Method and device for performing wavelength modulation with Distributed Bragg Reflector (DBR) laser
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United States of America Patent
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Oct 14, 2008
Grant Date -
Jun 8, 2006
app pub date -
Dec 3, 2004
filing date -
Dec 3, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention is directed to a method and system for providing phase modulated current to a semiconductor laser to control beam wavelength. A first current is received into a gain portion of the semiconductor laser and a second current is received into a DBR portion of the semiconductor laser. The second current is phase modulated based upon a required intensity value. An output beam is generated by the semiconductor laser based upon the received first current and the received second current.
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