Dark laser heating by positive pulse biasing in heat assisted magnetic recording

Dark laser heating by positive pulse biasing in heat assisted magnetic recording

Various illustrative aspects are directed to a data storage device comprising a disk; a read/write head configured to read data from and write data to the disk; a laser diode configured to heat an area of the disk near the read/write head; and one or more processing devices configured to preheat the...

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Hauptverfasser: Zakai, Rehan, Rajauria, Sukumar, Contreras, John T, Poss, Joey M, Xing, Xinzhi
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Sprache:eng
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INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator Zakai, Rehan
Rajauria, Sukumar
Contreras, John T
Poss, Joey M
Xing, Xinzhi
description Various illustrative aspects are directed to a data storage device comprising a disk; a read/write head configured to read data from and write data to the disk; a laser diode configured to heat an area of the disk near the read/write head; and one or more processing devices configured to preheat the laser diode to a target temperature associated with a write operation, wherein the preheating comprises applying (e.g., using a preamplifier) at least one forward bias pulse to the laser diode, wherein a corresponding duration of the at least one forward bias pulse is shorter than a duration of a turn-on delay for the laser diode; and initiate a write operation for writing data to the disk, based at least in part on the preheating.
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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title Dark laser heating by positive pulse biasing in heat assisted magnetic recording
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