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US 2026/0299224 A1Published application
Optical element assembly, method for manufacturing optical element assembly, optical module, optical engine, and xr glasses
AssigneeTDK Corporation
InventorsTakashi HONDA, Ryohei FUKUZAKI, Tsuyoshi KOMAKI
Life of this patent
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Abstract
This optical element assembly includes a laser diode, and an optical waveguide layer including an optical waveguide guiding laser light output from the laser diode. The optical waveguide layer has an alignment marker. The alignment marker is provided on an outermost surface of the optical waveguide layer and is positioned on an inner side of an outer peripheral edge of the optical waveguide layer.
Claims20
An optical element assembly comprising:
- a laser diode;
- and
- an optical waveguide layer including an optical waveguide guiding laser light output from the laser diode,
- wherein the optical waveguide layer has an alignment marker, and
- the alignment marker is provided on an outermost surface of the optical waveguide layer and is positioned on an inner side of an outer peripheral edge of the optical waveguide layer.
2 more elements
A method for manufacturing an optical element assembly comprising:
- a bonding step of bonding a laser diode assembly to an optical waveguide chip,
- wherein the laser diode assembly includes a base mount, and a laser diode mounted on a main surface of the base mount,
- the optical waveguide chip includes an optical waveguide substrate, and an optical waveguide layer provided on a main surface of the optical waveguide substrate and having an alignment marker,
- the alignment marker is provided on an outermost surface of the optical waveguide layer and is positioned on an inner side of an outer peripheral edge of the optical waveguide layer, and
- in the bonding step, the optical waveguide layer is observed in a plan view to identify an input port of a core of the optical waveguide layer and positionally align the laser diode assembly using coordinates of the alignment marker, and the laser diode assembly is bonded to the optical waveguide chip in a state where the laser diode assembly is positionally aligned.
2 more elements
Dependencies are inferred from the claim text.