An Optical Feedback Scheme to Enhance Sum-Frequency Generation
Udit Chatterjee, Sudipta Gangopadhyay, Chittaranjan Ghosh, Gopal Chandra Bhar and Jin Jer Huang
Incorporation of a new optical feedback mechanism in conventional setup of sum-frequency generation using one of the input beams as the feedback beam significantly enhances the conversion efficiency of the process without any change either in the beam parameters or in the intensity of the input fundamental laser radiations.