Waveguide device and method for phase matched second harmonic generation
申请人:Hoechst Celanese Corp.
公开号:US05224196A1
公开(公告)日:1993-06-29
In one embodiment this invention provides a frequency doubling optical waveguide consisting of a substrate-supported polymeric thin film waveguiding layer, in combination with one or more polymeric cladding layers. The waveguiding layer comprises moieties which exhibit nonlinear optical properties as well as anomalous dispersion of refractive index such that, under wave propagating conditions, the effective dispersion .DELTA.N of the waveguiding layer is zero, and the fundamental and second harmonic waves are phase matched over the length of the waveguide.