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US 2026/0302722 A1Published application
Light source module, optical engine, image display device, and method for manufacturing light source module
AssigneeTDK Corporation
InventorsTakashi HONDA, Taku SOMEYA, Ryohei FUKUZAKI, Tsuyoshi KOMAKI
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Abstract
This light source module includes a plurality of subcarriers, a single optical waveguide substrate, and a metal laminated film for bonding a bonding surface of each of the plurality of subcarriers to a bonding surface of the optical waveguide substrate. Substrate-side metal films are composed of a plurality of isolated films, and dimensions of the isolated films in any two orthogonal directions are smaller than dimensions of carrier-side metal films in two orthogonal directions.
Claims25
A light source module comprising:
- a plurality of laser elements;
- a plurality of subcarriers which each have a main surface and a bonding surface, on each of which one of the plurality of laser elements is mounted on the main surface, and which are arranged apart from each other in a first direction;
- a single optical waveguide substrate which has a main surface and a bonding surface, and on which optical waveguides for guiding laser light output from the plurality of laser elements are provided on the main surface side;
- and
- a metal laminated film in which a plurality of metal films for bonding the bonding surface of each of the plurality of subcarriers and the bonding surface of the optical waveguide substrate are laminated,
- wherein among the plurality of metal films constituting the metal laminated film, substrate-side metal films formed on the bonding surface of the optical waveguide substrate are composed of a plurality of isolated films arranged apart from each other at positions corresponding to the plurality of subcarriers, and
- dimensions of the isolated films in any two orthogonal directions are smaller than dimensions, in the two orthogonal directions, of carrier-side metal films formed on the bonding surfaces of the respective subcarriers.
4 more elements
A light source module comprising:
- a plurality of laser elements;
- a plurality of subcarriers which each have a main surface and a bonding surface, on each of which one of the plurality of laser elements is mounted on the main surface, and which are arranged apart from each other in a first direction;
- a single optical waveguide substrate which has a main surface and a bonding surface, and on which optical waveguides for guiding laser light output from the plurality of laser elements are provided on the main surface side;
- and
- a metal laminated film in which a plurality of metal films for bonding the bonding surface of each of the plurality of subcarriers and the bonding surface of the optical waveguide substrate are laminated,
- wherein among the plurality of metal films constituting the metal laminated film, substrate-side metal films formed on the bonding surface of the optical waveguide substrate include an Au film and a plurality of isolated films arranged apart from each other at positions corresponding to the plurality of subcarriers on the Au film,
- the Au film is arranged on the bonding surface of the optical waveguide substrate over at least a range covering all carrier-side metal films formed on the bonding surfaces of the respective subcarriers, and
- the optical waveguide substrate is made of glass or fused silica.
5 more elements
Dependencies are inferred from the claim text.