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Diode-laser-pump module with integrated signal ports for pumping amplifying fibers and method

United States Patent

May 26, 2009
View the Complete Patent at the US Patent & Trademark Office
Apparatus and method for collimating pump light of a first wavelength from laser diode(s) into a collimated beam within an enclosure having first and second optical ports, directing pump light from the collimated beam to the first port; and directing signal light inside the enclosure between the first and second port. The signal and pump wavelengths are different. The enclosure provides a pump block having a first port that emits pump light to a gain fiber outside the enclosure and that also passes signal light either into or out of the enclosure, and another port that passes signal light either out of or into the enclosure. Some embodiments use a dichroic mirror to direct pump light to the first port and direct signal light between the first and second ports. Some embodiments include a wavelength-conversion device to change the wavelength of at least some of the signal light.
Savage-Leuchs; Matthias P. (Woodinville, WA)
Lockheed Martin Corporation (Bethesda, MD)
11/ 682,234
March 5, 2007
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support from the Department of Energy under contract number DE-FG02-03ER83589. The Government has certain rights in the invention.