ENCAPSULATED LASER DIODE FOR HEAT-ASSISTED MAGNETIC RECORDING

摘要

A magnetic write head is disclosed that includes a slider that includes a laser diode having a light-emitting edge or surface of a laser diode and an optical waveguide. The disclosed magnetic write head also includes a dielectric layer disposed in a gap between the laser diode and an input to the optical waveguide. The dielectric layer fills the gap completely and provides a low-loss optical pathway for the laser diode to the input of the optical waveguide. Also disclosed is a method that includes spinning on a dielectric in a gap between the light-emitting surface and the optical waveguide coupler, wherein after the spinning on, the laser diode is optically coupled to the optical waveguide coupler through the dielectric.

主权项

1. A magnetic write head, comprising:
a slider that includes a laser diode having a light-emitting edge or surface; an optical waveguide; and a spin-on-dielectric disposed in a gap between the optical waveguide and the light-emitting edge or surface, the dielectric configured to optically couple the laser diode to the optical waveguide,wherein the dielectric has a refractive index greater than about 1.6.