Heat assisted media recording device with reduced likelihood of laser mode hopping
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United States of America Patent
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Feb 27, 2018
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N/A
app pub date -
Sep 22, 2014
filing date -
Sep 22, 2014
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Abstract
An apparatus includes a laser diode, a heater arrangement, and a circuit. The laser diode is configured to facilitate heat assisted magnetic recording during a lasing state. The heater arrangement is positioned proximate the laser diode. The circuit electrically couples the laser diode and the heater arrangement in a parallel relationship. The circuit is configured to alternately operate the laser diode in a lasing state and a non-lasing state, and to activate the heater arrangement during the non-lasing state to warm a junction of the laser diode.
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