New Radial Tilt Detection Method Using Only One Beam and One Four-Quadrant Detector

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概要

• 論文の詳細を見る

• The effects of disk radial tilt on the differential time detection (DTD) tracking error signal are calculated and measured. A new radial tilt error detection scheme is proposed, which uses only one focus beam and four detectors namely, A, B, C and D quadrants. Experimental results show that the new method exhibits good linearity with a sensitivity of about 320 mV/degree in a radial tilt range of $-0.5$°–$+0.5$°.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2004-11-15

著者

• Gong Mali

  Center For Photonics And Electronics Tsinghua University

• WANG Yuxing

  Center for Photonics and Electronics, Tsinghua University

• MA Jianshe

  Optical Memory National E. R. C.

• YAN Ping

  Center for Photonics and Electronics, State Key Laboratory of Tribology, Department of Precision Instruments, Tsinghua University

• Ma Jianshe

  Optical Memory National E.R.C., Beijing 100084, P.R. China

• Gong Mali

  Center for Photonics and Electronics, Tsinghua University, Beijing 100084, P.R. China

• Yan Ping

  Center for Photonics and Electronics, Tsinghua University, Beijing 100084, P.R. China

• Wang Yuxing

  Center for Photonics and Electronics, Tsinghua University, Beijing 100084, P.R. China

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