Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Qing He0
Date of Patent
June 28, 2011
0Patent Application Number
120835080
Date Filed
October 12, 2006
0Patent Primary Examiner
Patent abstract
The present invention relates to a method and device for reducing the phase noise of a laser signal from a laser source. This device comprises a first current generator for supplying a driving current to the laser source in view of producing the laser signal. A phase noise detector is responsive to the laser wavelength for generating a phase error signal and a second current generator is responsive to the phase error signal for generating a compensation current added to the driving current supplied to the laser source for generating a phase-adjusted laser signal. The device therefore defines a phase stabilization loop formed by the phase noise detector and the second current generator, for reducing the phase noise of the laser signal.
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