Quasi-phasematching design to provide an approximation to a desired spectral amplitude response A(f) is provided. An initial phase response φ(f) corresponding to A(f) is generated. Preferably, d2φ(f)/df2 is proportional to A2(f). A function h(x) is computed such that h(x) and H(f)=A(f)exp(iφ(f)) are...http://www.google.fr/patents/US7116468?utm_source=gb-gplus-shareBrevet US7116468 - Design of quasi-phasematched optical frequency converters
Design of quasi-phasematched optical frequency converters
