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Measuring transition shifts due to laser power variation in a heat-assisted magnetic recording device
Measuring transition shifts due to laser power variation in a heat-assisted magnetic recording device
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机译:在热辅助磁记录设备中测量由于激光功率变化而引起的跃迁
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摘要
A method comprises writing a waveform on a magnetic recording medium using a heat-assisted magnetic recording apparatus which includes a laser. The method also comprises reading back the waveform from the medium, and detecting one or more transition shifts in the readback waveform indicative of a mode hop of the laser. The method further comprises measuring a metric of the one or more transition shifts.
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