Integrated monomode spatial optical filter and its method of emb

Details Integrated monomode spatial optical filter and its method of emb Integrated monomode spatial optical filter and its method of emb

1991-06-12

1992-03-03

Healy, Brian

Optical waveguides

Planar optical waveguide

Thin film optical waveguide

385 14, 385 29, 385 32, 385146, 437 51, 437141, 437228, G02B 612, H01L 2170

Patent

active

050938843

ABSTRACT:
Integrated monomode spatial optical filter and its method of embodiment. The optical filter of the invention for isolating one first optical mode and eliminating second stray optical modes consists of an optical microguide (4) borne by a substrate (2) and having along a plane parallel to the surface (P) of the substrate at least one curved portion (6) whose radius of curvature is such that the losses in the curve of the first and second modes are respectively negligible and extremely high and two light absorbers (8, 10) disposed within a given plane on both sides of the curved portion (6).

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