Granted Patent
Utility
US 4,965,525 · App. 07/435,625
Angled-facet flared-waveguide traveling-wave laser amplifiers
Inventor:
Chung-En Zah
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Nov 13, 1989
Inventor
Chung-En Zah
Assignee (at issue)
Bell Communications Research, 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.