| 摘要 |
PROBLEM TO BE SOLVED: To provide a submount-integrated photodetector for monitoring a laser for heat-assisted magnetic recording (HAMR) head.SOLUTION: In a HAMR hard disk drive, a laser module includes a submount-integrated photodetector configured to receive optical energy from a laser by way of a head slider. A HAMR head slider assembly may comprise a feedback waveguide configured to guide optical energy from the laser through the slider to a feedback photodiode at an interface of the submount and the slider, to detect the optical energy transmitted through the slider to a slider air bearing surface (ABS). |
