Granted Patent
Utility
US 6,400,744 · App. 09/512,757
Apparatus comprising a quantum cascade laser having improved distributed feedback for single-mode operation
Inventors:
Federico Capasso, Alfred Yi Cho, Sung-Nee George Chu, Claire F. Gmachi, Ruedeger Koehler, Deborah Lee Sivco, Alessandro Tredicucci
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Feb 25, 2000
Inventors
Federico Capasso
Alfred Yi Cho
Sung-Nee George Chu
Claire F. Gmachi
Ruedeger Koehler
Deborah Lee Sivco
Alessandro Tredicucci
Assignee (at issue)
LUCENT TECHNOLOGIES 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.