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Determining optical degradation in a heat-assisted read/write head
Determining optical degradation in a heat-assisted read/write head
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机译:确定热辅助读/写头中的光学性能
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摘要
A change in an optical energy profile of energy emitted from a read/write head is determined. The read/write head includes an optical transmission path that emits the energy to heat a heat-assisted recording medium during writing. A change in optical efficiency of the read/write head is also determined. Based on the change in the optical energy profile and the change in the optical efficiency, a change in the effectiveness of the read/write head is determined, and in response a mitigation is performed.
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