Seagate Technology Incorporated

Christopher Gerwyn Ward

Aidan Dominic Goggin

Reyad Mehfuz

Christopher Neil Harvey

John Bernard McGurk

Kelly Elizabeth Callan

A recording head has a waveguide core with an input end proximate an energy source at an input surface of the recording head. The waveguide core couples light from the energy source to a near-field transducer that heats a recording medium in response to the light. An input coupler extends along the waveguide core from the input end to a termination region that is away from the input end in a light propagation direction. The input coupler has a first refractive index between that of the waveguide core and a surrounding material. The input coupler is wider than the waveguide core and has a slanted edge at the termination region. The slanted edge crosses the waveguide core such that the input coupler narrows to a neck away from the waveguide core in a crosstrack direction.

Growing community of inventors

Randalstown, United Kingdom

Christopher Gerwyn Ward