Light delivery
AssigneeSeagate Technology LLC
InventorsChubing Peng, Edward Charles Gage
Life of this patent
Estimating the term…
Abstract
A light delivery system in a slider includes a channel waveguide, a solid immersion mirror, a near field transducer, and a planar waveguide assembly. The solid immersion mirror focuses light to the near field transducer. In one implementation, the slider includes a first reflective element and a second reflective element formed in the slider to induce an offset between a light source and the near field transducer. The reflective elements redirect light received from a light source between the reflective elements to a focusing element (e.g., a solid immersion mirror) focused on a near field transducer. The reflective elements translate the light in accordance with the offset between the light source and the near field transducer.
Claims23
A slider comprising:
- a channel waveguide in the slider, the channel waveguide being configured to receive light from a light source positioned external to the slider;
- a near field transducer positioned at an air bearing surface of the slider, the near field transducer substantially aligned along a single axis with a light emitting output of the light source and the channel waveguide;
- a planar waveguide assembly in the slider, the planar waveguide assembly being configured to receive the light from the channel waveguide and to direct the light to a solid immersion mirror in the planar waveguide assembly, the solid immersion mirror being configured to focus the light to the near field transducer;
- and
- at least one reflective element configured to direct the light received from the channel waveguide to the near field transducer in combination with the solid immersion mirror.
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A data storage system comprising:
- a light source positioned on an exterior surface of a slider opposite an air bearing surface of the slider;
- a channel waveguide in the slider, the channel waveguide being configured to receive light from the light source, wherein the light source is aligned with a first axis associated with the channel waveguide and offset from a second parallel axis associated with a near field transducer in the slider at an air bearing surface of the slider;
- and
- a planar waveguide assembly in the slider, the planar waveguide assembly being configured to receive the light from the channel waveguide along the first axis and to direct the light to the near field transducer along the second axis.
Dependencies are inferred from the claim text.