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Blue, green, orange, and red upconversion laser

United States Patent

*** EXPIRED ***
September 8, 1998
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
A laser for outputting visible light at the wavelengths of blue, green, orange and red light. This is accomplished through the doping of a substrate, such as an optical fiber or waveguide, with Pr.sup.3+ ions and Yb.sup.3+ ions. A light pump such as a diode laser is used to excite these ions into energy states which will produce lasing at the desired wavelengths. Tuning elements such as prisms and gratings can be employed to select desired wavelengths for output.
Xie; Ping (San Jose, CA), Gosnell; Timothy R. (Sante Fe, NM)
The Regents of the University of California (Oakland, CA)
08/ 686,831
July 26, 1996
This invention was made with Government support under Contract No. W-7405ENG-36 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.