Title :
Optimal design for broadband quasi-phase-matched second-harmonic generation using simulated annealing
Author :
Wu, Jie ; Kondo, Takashi ; Ito, Ryoichi
Author_Institution :
Dept. of Appl. Phys., Tokyo Univ., Japan
fDate :
3/1/1995 12:00:00 AM
Abstract :
We propose a modulation-optimization method for achieving broadband quasi-phase matching in second-harmonic generation devices with domain-inverted structures. Using simulated annealing, we optimize phase-matching curves tailored to practical purposes by appropriately choosing a cost function in the annealing process. Both the acceptance bandwidth and the conversion efficiency are significantly improved in comparison with conventional periodically domain-inverted devices
Keywords :
optical design techniques; optical harmonic generation; optical planar waveguides; optical waveguide theory; optimisation; simulated annealing; acceptance bandwidth; broadband quasi-phase matching; broadband quasi-phase-matched second-harmonic generation; conversion efficiency; cost function; domain-inverted structures; modulation-optimization method; optical planar waveguides; optimal design; periodically domain-inverted devices; phase-matching curves; second-harmonic generation devices; simulated annealing; Bandwidth; Cost function; Frequency conversion; Gratings; Nonlinear optics; Optical frequency conversion; Optical harmonic generation; Optical signal processing; Optical waveguides; Simulated annealing;
Journal_Title :
Lightwave Technology, Journal of
