"Shinichi Wakabayashi,Akihiro Itou,Tetsuya MIZUMOTO","Reduction of second-order intermodulation distortions using chirped fiber Bragg grating with low group delay ripples for application to fiber-optic analog transmission",,"Journal of Optical Society of America, B","Optical Society of America","Vol. 25","No. 9","pp. 1442-1448",2008,Sept.