We propose a high-speed and precise gap servo of reducing harmonics of axial run-out disturbance-feed-forward control for near-field recording. We could perform gap servo at 11000 rpm applying RHD-FFC using SIL head and 100GB disk.
© 2011 OSA
D. Koide, T. Kajiyama, H. Tokumaru, Y. Takano, Y. Nabata, T. Ogata, T. Miyazaki, and K. Ohishi, "High-Speed and Precise Gap Servo System for Near-Field Optical Recording," in Nonlinear Optics, OSA Technical Digest (CD) (Optical Society of America, 2011), paper OTuA3.
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