Patent 7342951 was granted and assigned to QUINTESSENCE PHOTONICS CORP. on March, 2008 by the United States Patent and Trademark Office.
A semiconductor laser diode that internally converts one or more short wavelength “pump” beams to an output beam at a longer wavelength using nonlinear optical frequency conversion in the semiconductor. Modal phase matching of the pump and output beams in a semiconductor waveguide allows the conversion process to proceed with high efficiency.