Patent ID: 9123374
Filing Date: 2015-09-01
Classification: G11B

Abstract:
1. A heat assisted magnetic recording (HAMR) write apparatus comprising: a laser for providing energy having a first polarization state; a polarization rotation plate optically coupled with the laser and for changing the first polarization state to a second polarization state; and a HAMR transducer having an air-bearing surface (ABS) configured to reside in proximity to a media during use, a waveguide, a main pole, at least one coil and a near-field transducer (NFT), the polarization rotation plate being between the HAMR transducer and the laser, the waveguide being optically coupled with the laser through the polarization rotation plate and for directing the energy from the polarization rotation plate toward the ABS, the NFT being proximate to the ABS and for focusing the energy onto a region of the media, the NFT being optically coupled with the waveguide and receiving energy having a third polarization state, the main pole being configured to write to the region of the media, the at least one coil for energizing the main pole.