Data storage device modifying write operation when a laser mode hop is detected

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United States of America Patent

PATENT NO 9747928
SERIAL NO

14497285

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Abstract

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A data storage device is disclosed comprising a first head actuated over a first disk surface, wherein the first head comprises a laser configured to heat the first disk surface while writing data to the first disk surface. A write power is applied to the laser when executing a first write operation, and the first write operation is paused when a transient increase in the output power of the laser is detected. In another embodiment, a write-verify of the written data is executed when a transient decrease in the output power of the laser is detected.

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Patent Owner(s)

  • WESTERN DIGITAL TECHNOLOGIES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Balasubramaniam, Prakash Rancho Santa Margarita, US 7 82
Chia, Galvin Rancho Santa Margarita, US 2 10
Haralson, Phillip S Huntington Beach, US 10 91
Hogg, Dennis W Laguna Hills, US 23 1639
Ruan, Huanxiang Irvine, US 9 215

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