Granted Patent
Utility
US 6,181,464 · App. 09/204,035
Low noise Raman amplifier employing bidirectional pumping and an optical transmission system incorporating same
Inventors:
Howard D. Kidorf, Xiaobing Ma, Morten Nissov
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Dec 1, 1998
Inventors
Howard D. Kidorf
Xiaobing Ma
Morten Nissov
Assignee (at issue)
Tycom (US) Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.