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Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ken Morito0
Date of Patent
October 31, 2006
0Patent Application Number
109595070
Date Filed
October 7, 2004
0Patent Primary Examiner
Patent abstract
The optical amplifying device comprises a DFB laser 22 formed on an n type InP substrate 10, for outputting control light; a symmetrical Mach-Zehnder interferometer 12 formed on the n type InP substrate 10 and including 3 dB optical couplers 14, 16 having 2 input ports and 2 output ports, and optical waveguides 24a, 24b which optically interconnect the output port of the 3 dB optical coupler 14 and the input port of the 3 dB optical coupler 16; and SOAs 24a, 24b respectively formed in the optical waveguides 24a, 24b.
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