Stable Intracavity Nonlinear Optics

CYGNUS LASER PROPOSES A REVOLUTIONARY METHOD OF DYNAMICALLY CONTROLLING THE HARMONIC GENERATION PROCESS. PRESENT HARMONIC GENREATION TECHNOLOGY INVOLVES DETERMINING AN OPTIMUM CRYSTAL SIZE AND LENGTH FOR A GIVEN FUNDAMENTAL LASER, THEN USING THE CRYSTAL AS A PASSIVE ELEMENT. THE ONLY AVAILABLE CONTROL MECHANISMS ARE QUITE OFTEN MECHANICAL ALIGNMENT AND TEMPERATURE CONTROL. THE CRYSTAL ACTS AS A NONLINEAR INTENSITY FILTER, GENERATING HARMONIC LIGHT IN A NONLINEAR FASHION WHENEVER THE POWER THRESHOLD IS REACHED. IN ALL OF THESE DESIGNS THE CRYSTAL IS A PASSIVE DEVICE. IT REACTS TO LIGHT THAT PASSES THROUGH IT. THE PROPOSED INNOVATION WOULD GIVE THE SYSTEM REAL-TIME CONTROL OVER THE SHG LASER OUPUT PULSE AND WOULD BE COMPLETELY ADJUSTABLE FROM PULSE TO PULSE.