Waveguide grating structure having linear and nonlinear waveguid

Details Waveguide grating structure having linear and nonlinear waveguid Waveguide grating structure having linear and nonlinear waveguid

1997-09-17

1999-08-10

Healy, Brian

Optical waveguides

Planar optical waveguide

385 14, 385 37, 385130, 385131, 385122, 359124, 359127, 359130, G02B 610, H04J 1402

Patent

active

059371293

ABSTRACT:
A structure of optical grating slab waveguide including a light waveguiding layer with linear refractive index disposed on another waveguiding layer having a nonlinear refractive index. The refractive index of nonlinear waveguiding material is a function of intensity of optical power incident therein. The structure of this invention provides an optical waveguide having improved optically coupling coefficient. A optical grating structures formed with a slab waveguide of this invention may be used as a wavelength selective coupling device of bidirectional optical coupler that is particularly useful as demultiplexer or multiplexer.

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