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V-shaped resonators for addition of broad-area laser diode arrays

United States Patent

December 25, 2012
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A system and method for addition of broad-area semiconductor laser diode arrays are described. The system can include an array of laser diodes, a V-shaped external cavity, and grating systems to provide feedback for phase-locking of the laser diode array. A V-shaped mirror used to couple the laser diode emissions along two optical paths can be a V-shaped prism mirror, a V-shaped stepped mirror or include multiple V-shaped micro-mirrors. The V-shaped external cavity can be a ring cavity. The system can include an external injection laser to further improve coherence and phase-locking.
Liu; Bo (Oak Ridge, TN), Liu; Yun (Oak Ridge, TN), Braiman; Yehuda Y. (Oak Ridge, TN)
UT-Battelle, LLC (Oak Ridge, TN)
12/ 966,423
December 13, 2010
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH This invention was made with government support under Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in this invention.