Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Seong-Taek Hwang0
Seung-Woo Kim0
Jeong-Seok Lee0
Date of Patent
November 14, 2006
0Patent Application Number
107016420
Date Filed
November 5, 2003
0Patent Primary Examiner
Patent abstract
A Raman optical amplifier includes a fiber amplifier for Raman-amplifying an input optical signal to form a primarily-amplified optical signal, and a semiconductor optical amplifier for outputting a Raman pumping light of a predetermined wavelength adapted to Raman-pump the fiber amplifier, while amplifying the primarily-amplified optical signal to form a secondarily-amplified optical signal. A circulator allows the fiber and semiconductor amplifiers to communicate the lights and signals and operates with fiber grating, which acts as a filter, to output the secondarily-amplified optical signal
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