Patent ID: 8422342

Claim:
An energy assisted magnetic recording (EAMR) disk drive including a media comprising: a slider having a trailing face and an air-bearing surface (ABS); at least one distributed feedback (DFB) laser including a plurality of quantum wells, a first mirror, a laser coupling grating, at least one reflector, and a cavity in the at least one DFB laser, the plurality of quantum wells residing between the first mirror and the cavity, the at least one DFB laser for providing energy to the media; and at least one EAMR transducer on the slider, the at least one EAMR transducer including at least one waveguide, a write pole, at least one coil for energizing the write pole, a second mirror and at least one grating, a coupling grating of the at least one grating for coupling the energy from the at least one DFB laser to the at least one waveguide, the at least one waveguide directing the energy from the at least one grating toward the ABS, the at least one waveguide residing between the second mirror and the cavity.