Spatial optical integrated monomode filter and method of manufacture.

摘要

The optical filter of the invention, intended to isolate a first optical mode and to eliminate second parasitic optical modes, consists of an optical microguide (4) supported 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 very significant, and two light absorbers (8, 10) disposed in a same plane on each side of the curved portion (6).
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