Light coupling structure, method of forming a light coupling structure and a magnetic recording head
AssigneeAgency for Science, Technology and Research
InventorsQian Wang, Seng-Tiong Ho
Life of this patent
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Abstract
A light coupling structure, a method of manufacturing a memory cell, and a magnetic recording head are provided. The light coupling structure includes a light coupling layer having a cavity; a waveguide having a cladding layer and a core layer; wherein the cladding layer of the waveguide is disposed in the cavity of the light coupling layer and the core layer of the waveguide is disposed over the light coupling layer and the cladding layer of the waveguide; wherein the light coupling layer is configured to receive light from a light source and couple the received light into the core layer of the waveguide.
Claims20
A light coupling structure, comprising:
- a light coupling layer having a cavity;
- a waveguide having a cladding layer and a core layer;
- wherein the cladding layer of the waveguide is disposed in the cavity of the light coupling layer and the core layer of the waveguide is disposed over the light coupling layer and the cladding layer of the waveguide;
- wherein the light coupling layer is configured to receive light from a light source and couple the received light into the core layer of the waveguide.
A magnetic recording head, comprising:
- a light coupling structure, comprising:
- a light coupling layer having a cavity;
- a waveguide having a cladding layer and a core layer;
- wherein the cladding layer of the waveguide is disposed in the cavity of the light coupling layer and the core layer of the waveguide is disposed over the light coupling layer and the cladding layer of the waveguide;
- wherein the light coupling layer is configured to receive light from a light source and couple the received light into the core layer of the waveguide;
- and
- a writing head disposed adjacent to the waveguide.
A method of forming a light coupling structure, the method comprising:
- forming a light coupling layer;
- etching the light coupling layer to form a cavity;
- depositing a cladding layer of a waveguide in the cavity of the light coupling layer;
- and
- depositing a core layer of the waveguide over the light coupling layer and the cladding layer of the waveguide.
Dependencies are inferred from the claim text.