Design and method for planar coupled waveguide filter

Details Design and method for planar coupled waveguide filter Design and method for planar coupled waveguide filter

1998-07-21

2000-08-01

Spyrou, Cassandra

Optical waveguides

With optical coupler

Particular coupling structure

385 37, 385 39, 385129, 385131, 359130, G02B 626, G02B 634, H04J 1402

Patent

active

060978651

ABSTRACT:
A wavelength filter has a low index waveguide, a high index waveguide and a grating for coupling therebetween. The high index waveguide is in horizontal proximity to said low index waveguide. The low index waveguide and said high index waveguide have substantially different geometries which result in substantially different indices. A method for fabricating the wavelength filter is also disclosed.

REFERENCES:
patent: 4573163 (1986-02-01), Kaminow
patent: 4750801 (1988-06-01), Alferness
patent: 5517589 (1996-05-01), Takeuchi

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