High Efficiency Quadrature Frequency Doubler

AT CYGNUS LASER, WE HAVE BECOME CONVINCED THAT NONLINEAR OPTICAL MATERIALS WITH DESIRABLE PROPERTIES FOR HARMONIC GENERATION AND FREQUENCY CONVERSION ALREADY EXIST. IN PARTICULAR, WE HAVE ALREADY DEMONSTRATED A KTP SECOND HARMONIC GENERATOR FOR 1064 NM LASERS IN OUR LABORATORY WITH A CONVERSION EFFICIENCY OF 80%. WE UNDERSTAND IN DETAIL THE PHYSICS OF SECOND HARMONIC GENERATION WELL BEYOND THE SIMPLE APPROXIMATION WHICH CHARACTERIZE MOST TEXTBOOK ANALYSES. DURING PHASE I, WE PROPOSE TO DEVELOP FOR THE SDIO A QUADRATURE HIGH EFFICIENCY FREQUENCY DOUBLER CAPABLE OF CONVERTING 532 NM - 266 NM WITH AN EFFICIENCY OF 70%, RESULTING IN AND OVERALL 1064 - 266 NM SYSTEM EFFIENCY OF OVER 60%. WHILE THE MATERIALS TECHNOLOGY USED IN OUR APPROACH IS MATURE, OUR DEVICE GEOMETRY IS A RADICAL DEPARTURE FROM CURRENT UV GENERATION SYSTEMS.