ForwardItiswithpleasurethatIwritethisforwardfortheChinesetranslationofmytwobooksonfundamentalsandapplicationsofNonlinearFiberOpticspublishedin2007and2008byAcademicPress，Elsevier.Thefirstpart，devotedtofundamentalsaspectsofNonlinearFiberOptics，hasbeenexpandedconsiderablyfromitsprevio