H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/17 (2006.01) H01S 3/094 (2006.01) H01S 3/16 (2006.01)
Patent
CA 2299137
An optical signal is inputted to an erbium doped optical fiber. A 975 nm band pumping light and a 978 nm band pumping light are inputted to the erbium doped optical fiber from an input side and an output side of the erbium doped optical fiber, respectively, whereby the erbium doped fiber amplifies the optical signal.
Corporation Nec
Smart & Biggar
LandOfFree
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