Patent ID: 8289821
Filing Date: 2012-10-16
Classification: G11B

Abstract:
1. An energy assisted magnetic recording (EAMR) disk drive comprising: a magnetic recording media; a pre-amplifier for providing a write current signal and a write gate signal for providing power; an EAMR head, the EAMR head including at least one write transducer and at least one laser, the at least one write transducer coupled with the pre-amplifier and including at least one writer coil, the write current signal driving the at least one writer coil; at least one clock recovery circuit coupled with the at least one laser, the at least one clock recovery circuit receiving the write current signal and the write gate signal and outputting at least one laser control signal that energizes the at least one laser such that the at least one laser is energized synchronously with the at least one writer coil.