DUAL THERMAL SENSOR FOR HAMR WAVEGUIDE POWER MONITOR AND INTEGRATION WITH THE CONTACT SENSOR

摘要

Embodiments of the present invention generally relate to a HAMR device having two temperature sensors. The first temperature sensor is disposed adjacent a waveguide and is about two or more micrometers away from an air bearing surface. The first temperature sensor has a length, a width and a thickness, and the length is greater than the width and the thickness. The length of the first temperature sensor is substantially perpendicular to the waveguide.

主权项

1. A heat assisted magnetic recording device, comprising:
a waveguide; a first temperature sensor disposed adjacent the waveguide and adapted to be heated by an optical power passing through the waveguide, wherein the first temperature sensor is about two or more micrometers away from an air bearing surface, wherein the first temperature sensor has a first length, a first width and a first thickness, and the first length is greater than the first width and the first thickness, and wherein the first length is substantially perpendicular to the waveguide; and a second temperature sensor, wherein the second temperature sensor has a second length, a second width and a second thickness, and the second length is greater than the second width and the second thickness, and wherein the length is substantially perpendicular to the first length.