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Use of a photonic crystal for optical amplifier gain control

United States Patent

July 18, 2006
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
An optical amplifier having a uniform gain profile uses a photonic crystal to tune the density-of-states of a gain medium so as to modify the light emission rate between atomic states. The density-of-states of the gain medium is tuned by selecting the size, shape, dielectric constant, and spacing of a plurality of microcavity defects in the photonic crystal. The optical amplifier is particularly useful for the regeneration of DWDM signals in long optical fibers.
Lin; Shawn-Yu (Albuquerque, NM), Fleming; James G. (Albuquerque, NM), El-Kady; Ihab (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
10/ 607,065
June 25, 2003
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under contract no. DE-AC04-94AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.