Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 8, 2010
Patent Application Number
11452312
Date Filed
June 14, 2006
Patent Primary Examiner
Patent abstract
A wavelength tunable laser module for DWDM is used, in which a single electroabsorption modulator integrated laser is mounted and an oscillation wavelength is made tunable by temperature control. Driving conditions of a laser and a modulator are determined such that they have approximately the same modulation and transmission characteristics in a temperature control range. Such an electroabsorption modulator integrated laser is used and the driving conditions are incorporated, thereby a small, inexpensive wavelength tunable optical transmitter can be provided.
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