Patent ID: 7715677
Filing Date: 2010-05-11
Classification: G02B,G02F,H01S,H04L,Y02D

Abstract:
1. An apparatus for achieving phase-matching using a waveguide having material independence, the apparatus comprising: (a) a core of adjustable thickness operable to produce an arbitrary effective index; and (b) upper cladding and lower cladding having a periodic structure, the upper cladding and the lower cladding connected adjacent to and oppositely disposed about the core to guide a fundamental wavelength by the total internal reflection and guide a second harmonic wavelength by the transverse Bragg reflection; wherein the core, the upper cladding and the lower cladding are operable to guide waves by total internal reflection and by transverse Bragg reflection and one or more phase-matching tunability methods are applied in relation to wavelengths and different tunability methods may be applied to individual wavelengths within the apparatus.