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Fast wavelength tuning techniques for external cavity lasers

United States Patent

7,869,474
January 11, 2011
View the Complete Patent at the US Patent & Trademark Office
An apparatus comprising a laser source configured to emit a light beam along a first path, an optical beam steering component configured to steer the light beam from the first path to a second path at an angle to the first path, and a diffraction grating configured to reflect back at least a portion of the light beam along the second path, wherein the angle determines an external cavity length. Included is an apparatus comprising a laser source configured to emit a light beam along a first path, a beam steering component configured to redirect the light beam to a second path at an angle to the first path, wherein the optical beam steering component is configured to change the angle at a rate of at least about one Kilohertz, and a diffraction grating configured to reflect back at least a portion of the light beam along the second path.
Wysocki; Gerard (Princeton, NJ), Tittel; Frank K. (Houston, TX)
William Marsh Rice University (Houston, TX)
12/ 349,839
January 7, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with U.S. Government support under Contract No.: DE-FG02-06ER86264 awarded by the Department of Energy through pass-through funding to Aerodyne Research Inc. The Government has certain rights in this invention.