Optical waveguide component and method for the production thereof
The invention relates to an optical waveguide component and to a method for the production thereof. The optical waveguide component comprises: —at least one optical waveguide structure ( 10, 11, 12, 13 ) which is in the form of a first three-dimensional freeform structure and which has at least one first portion ( 10 a, 10 e, 10 f, 10 g, 10 i, 10 j ) which is enclosed by at least one jacket material ( 30 ); •—at least one guide structure ( 20 ), which is in the form of a second three-dimensional freeform structure, in the vicinity of the at least one first portion ( 10 a, 10 e, 10 f, 10 g, 10 i, 10 j ); and •—the at least one jacket material ( 30 ), which at least partially fills a spatial region between the at least one first portion ( 10 a, 10 e, 10 f, 10 g, 10 i, 10 j ) and the at least one guide structure ( 20 ), wherein the at least one guide structure ( 20 ) defines a region within which the at least one first portion ( 10 a, 10 e, 10 f, 10 g, 10 i, 10 j ) is enclosed by the at least one jacket material ( 30 ), and wherein at least one second portion ( 10 b, 10 c, 10 d, 10 h ) of the optical waveguide structure ( 10, 11, 12, 13 ) or at least one optical component ( 200 ) adjacent to the optical waveguide structure ( 10, 11, 12, 13 ) is not enclosed by the at least one jacket material ( 30 ).
1 . An optical waveguide component, comprising
at least one optical waveguide structure configured in form of a first three-dimensional freeform structure and having at least one first portion surrounded by at least one cladding material;
at least one guide structure configured in form of a second three-dimensional freeform structure in a vicinity of the at least one first portion; and
the at least one cladding material, which at least partly fills a spatial region between the at least one first portion and the at least one guide structure, wherein the at least one guide structure defines a region within which the at least one first portion is surrounded by the at least one cladding material, and wherein at least one second portion of the optical waveguide structure or at least one optical component adjacent to the optical waveguide structure is not surrounded by the at least one cladding material, wherein the at least one cladding material has a material absorption of at most 5 dB/mm at an operating wavelength of the waveguide component.
2 . The optical waveguide component of claim 1 , wherein the at least one guide structure is not directly adjacent to the at least one optical waveguide structure.
3 . The optical waveguide component of claim 1 , wherein at least one of the guide structure or the cladding material is designed for mechanically stabilizing the at least one optical waveguide structure.
4 . The optical waveguide component of claim 1 , wherein the at least one cladding material is not structurable with high resolution.
5 . The optical waveguide component of claim 1 , wherein the at least one optical waveguide structure
has at least two portions surrounded by different cladding materials; or
is surrounded symmetrically by the at least one cladding material.
6 . The optical waveguide component of claim 1 , furthermore comprising at least one optical substrate, wherein at least one of the optical waveguide structure or the guide structure is applied on the at least one optical substrate.
7 . The optical waveguide component of claim 1 , wherein the guide structure, apart from the anchoring with the at least one optical substrate, is not adjacent to any other element of the optical waveguide component.
8 . The optical waveguide component of claim 1 , wherein the at least one optical waveguide structure has at least one distinguished waveguide portion in which the waveguide core is not surrounded by the at least one cladding material, and wherein an axis of the at least one distinguished waveguide portion is arranged substantially perpendicularly to the surface of the optical substrate.
9 . The optical waveguide component of claim 1 , wherein the optical waveguide component is designed for continuously single-mode light guiding along the at least one optical waveguide structure.
10 . The optical waveguide component of claim 1 , wherein the at least one guide structure furthermore comprises at least one of
a support structure designed for mechanically fixing the at least one guide structure; or
a fluid stop designed for limiting the at least one cladding material to a subregion of the spatial region between the at least one optical waveguide structure and the at least one guide structure.
11 . The optical waveguide component of claim 1 , wherein the guide structure has at least two substructures, and wherein a common feed structure is present, which is designed to fill the spatial region between the at least one optical waveguide structure and the at least two substructures by way of a common feed point.
12 . The optical waveguide component of claim 1 , wherein the optical waveguide component is or comprises at least one of
an optical coupling element, wherein the optical coupling element is designed to transmit light between two optical components or between an optical component and a free space portion; or
a polarization beam splitter.