Patent ID: 6704137
Filing Date: 2004-03-09
Classification: H01S

Abstract:
An optical amplifier, comprising:a pumping source for outputting a pumping light; a first optical dividing device for dividing said pumping light to a first and a second divided pumping light components; an amplification medium, to which said first and said second pumping light components are inputted; and a dividing ratio regulator for regulating power ratio of said first and said second divided pumping light components, wherein said pumping source comprises a laser diode; said first optical dividing device comprises a WDM coupler; said dividing ratio regulator comprises a temperature control circuit for regulating temperature of the laser diode; and said temperature control circuit comprises: a pumping light ratio setting circuit for setting power ratio of said first and said second divided pumping light components; temperature regulating means for determining a preset temperature of said pumping source to match the ratio as set by the pumping light ratio setting means; and temperature control means for controlling said pumping source to said preset temperature.