Abstract

Optical disks are widely used in data processing. However, one of the problems is slow access time compared with that of magnetic disks, because in the former dual mechanical actuators such as a galvanomirror or voice coils are used. To achieve higher speed access, it is necessary to replace mechanical components with an electronically controlled system. A surface acoustic device is introduced into the fine access actuator and its feasibility is tested. Less than 1-ms fine access can be expected.

© 1990 Optical Society of America

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References

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  1. M. Ishikawa, Y. Ohba, Y. Watanabe, H. Sugawara, M. Yamamoto, “Room-Temperature cw Operation of Transverse-Mode-Stabilized 680-nm InGaAlP Visible Light Laser Diodes Grown by MOCVD,” in Technical Digest, Conference on Lasers and Electro-Optics (Optical Society of America, Washington, DC, 1986), paper TUQ1.
  2. M. Ojima, T. Nakao, H. Sukeda, N. Ohta, H. Yasuoka, T. Nishida, M. Terao, “High Speed Overwritable Optical Disk,” Proc. Soc. Photo-Opt. Instrum. Eng. 899, 154–159 (1988).
  3. A. Arimoto, K. Muraoka, T. Shimano, K. Senda, S. Ishikawa, “Wave Guide Optical Deflector for Optical Disk Actuator Using Surface Acoustic Wave Device,” in Technical Digest, Conference on Integrated and Guided-Wave Optics (Optical Society of America, Washington, DC, 1989), paper MBB5.
  4. G. Bouwhuis, “Apparatus for Reading a Flat Record Carrier,” U.S. Patent3,876,842 (1975).
  5. S. Ura, T. Suhara, H. Nishihara, J. Koyama, “An Integrated-Optic Disk Pickup Device,” IEEE/OSA J. Lightwave Technol. LT-4, 913–918 (1986).
    [CrossRef]

1988 (1)

M. Ojima, T. Nakao, H. Sukeda, N. Ohta, H. Yasuoka, T. Nishida, M. Terao, “High Speed Overwritable Optical Disk,” Proc. Soc. Photo-Opt. Instrum. Eng. 899, 154–159 (1988).

1986 (1)

S. Ura, T. Suhara, H. Nishihara, J. Koyama, “An Integrated-Optic Disk Pickup Device,” IEEE/OSA J. Lightwave Technol. LT-4, 913–918 (1986).
[CrossRef]

Arimoto, A.

A. Arimoto, K. Muraoka, T. Shimano, K. Senda, S. Ishikawa, “Wave Guide Optical Deflector for Optical Disk Actuator Using Surface Acoustic Wave Device,” in Technical Digest, Conference on Integrated and Guided-Wave Optics (Optical Society of America, Washington, DC, 1989), paper MBB5.

Bouwhuis, G.

G. Bouwhuis, “Apparatus for Reading a Flat Record Carrier,” U.S. Patent3,876,842 (1975).

Ishikawa, M.

M. Ishikawa, Y. Ohba, Y. Watanabe, H. Sugawara, M. Yamamoto, “Room-Temperature cw Operation of Transverse-Mode-Stabilized 680-nm InGaAlP Visible Light Laser Diodes Grown by MOCVD,” in Technical Digest, Conference on Lasers and Electro-Optics (Optical Society of America, Washington, DC, 1986), paper TUQ1.

Ishikawa, S.

A. Arimoto, K. Muraoka, T. Shimano, K. Senda, S. Ishikawa, “Wave Guide Optical Deflector for Optical Disk Actuator Using Surface Acoustic Wave Device,” in Technical Digest, Conference on Integrated and Guided-Wave Optics (Optical Society of America, Washington, DC, 1989), paper MBB5.

Koyama, J.

S. Ura, T. Suhara, H. Nishihara, J. Koyama, “An Integrated-Optic Disk Pickup Device,” IEEE/OSA J. Lightwave Technol. LT-4, 913–918 (1986).
[CrossRef]

Muraoka, K.

A. Arimoto, K. Muraoka, T. Shimano, K. Senda, S. Ishikawa, “Wave Guide Optical Deflector for Optical Disk Actuator Using Surface Acoustic Wave Device,” in Technical Digest, Conference on Integrated and Guided-Wave Optics (Optical Society of America, Washington, DC, 1989), paper MBB5.

Nakao, T.

M. Ojima, T. Nakao, H. Sukeda, N. Ohta, H. Yasuoka, T. Nishida, M. Terao, “High Speed Overwritable Optical Disk,” Proc. Soc. Photo-Opt. Instrum. Eng. 899, 154–159 (1988).

Nishida, T.

M. Ojima, T. Nakao, H. Sukeda, N. Ohta, H. Yasuoka, T. Nishida, M. Terao, “High Speed Overwritable Optical Disk,” Proc. Soc. Photo-Opt. Instrum. Eng. 899, 154–159 (1988).

Nishihara, H.

S. Ura, T. Suhara, H. Nishihara, J. Koyama, “An Integrated-Optic Disk Pickup Device,” IEEE/OSA J. Lightwave Technol. LT-4, 913–918 (1986).
[CrossRef]

Ohba, Y.

M. Ishikawa, Y. Ohba, Y. Watanabe, H. Sugawara, M. Yamamoto, “Room-Temperature cw Operation of Transverse-Mode-Stabilized 680-nm InGaAlP Visible Light Laser Diodes Grown by MOCVD,” in Technical Digest, Conference on Lasers and Electro-Optics (Optical Society of America, Washington, DC, 1986), paper TUQ1.

Ohta, N.

M. Ojima, T. Nakao, H. Sukeda, N. Ohta, H. Yasuoka, T. Nishida, M. Terao, “High Speed Overwritable Optical Disk,” Proc. Soc. Photo-Opt. Instrum. Eng. 899, 154–159 (1988).

Ojima, M.

M. Ojima, T. Nakao, H. Sukeda, N. Ohta, H. Yasuoka, T. Nishida, M. Terao, “High Speed Overwritable Optical Disk,” Proc. Soc. Photo-Opt. Instrum. Eng. 899, 154–159 (1988).

Senda, K.

A. Arimoto, K. Muraoka, T. Shimano, K. Senda, S. Ishikawa, “Wave Guide Optical Deflector for Optical Disk Actuator Using Surface Acoustic Wave Device,” in Technical Digest, Conference on Integrated and Guided-Wave Optics (Optical Society of America, Washington, DC, 1989), paper MBB5.

Shimano, T.

A. Arimoto, K. Muraoka, T. Shimano, K. Senda, S. Ishikawa, “Wave Guide Optical Deflector for Optical Disk Actuator Using Surface Acoustic Wave Device,” in Technical Digest, Conference on Integrated and Guided-Wave Optics (Optical Society of America, Washington, DC, 1989), paper MBB5.

Sugawara, H.

M. Ishikawa, Y. Ohba, Y. Watanabe, H. Sugawara, M. Yamamoto, “Room-Temperature cw Operation of Transverse-Mode-Stabilized 680-nm InGaAlP Visible Light Laser Diodes Grown by MOCVD,” in Technical Digest, Conference on Lasers and Electro-Optics (Optical Society of America, Washington, DC, 1986), paper TUQ1.

Suhara, T.

S. Ura, T. Suhara, H. Nishihara, J. Koyama, “An Integrated-Optic Disk Pickup Device,” IEEE/OSA J. Lightwave Technol. LT-4, 913–918 (1986).
[CrossRef]

Sukeda, H.

M. Ojima, T. Nakao, H. Sukeda, N. Ohta, H. Yasuoka, T. Nishida, M. Terao, “High Speed Overwritable Optical Disk,” Proc. Soc. Photo-Opt. Instrum. Eng. 899, 154–159 (1988).

Terao, M.

M. Ojima, T. Nakao, H. Sukeda, N. Ohta, H. Yasuoka, T. Nishida, M. Terao, “High Speed Overwritable Optical Disk,” Proc. Soc. Photo-Opt. Instrum. Eng. 899, 154–159 (1988).

Ura, S.

S. Ura, T. Suhara, H. Nishihara, J. Koyama, “An Integrated-Optic Disk Pickup Device,” IEEE/OSA J. Lightwave Technol. LT-4, 913–918 (1986).
[CrossRef]

Watanabe, Y.

M. Ishikawa, Y. Ohba, Y. Watanabe, H. Sugawara, M. Yamamoto, “Room-Temperature cw Operation of Transverse-Mode-Stabilized 680-nm InGaAlP Visible Light Laser Diodes Grown by MOCVD,” in Technical Digest, Conference on Lasers and Electro-Optics (Optical Society of America, Washington, DC, 1986), paper TUQ1.

Yamamoto, M.

M. Ishikawa, Y. Ohba, Y. Watanabe, H. Sugawara, M. Yamamoto, “Room-Temperature cw Operation of Transverse-Mode-Stabilized 680-nm InGaAlP Visible Light Laser Diodes Grown by MOCVD,” in Technical Digest, Conference on Lasers and Electro-Optics (Optical Society of America, Washington, DC, 1986), paper TUQ1.

Yasuoka, H.

M. Ojima, T. Nakao, H. Sukeda, N. Ohta, H. Yasuoka, T. Nishida, M. Terao, “High Speed Overwritable Optical Disk,” Proc. Soc. Photo-Opt. Instrum. Eng. 899, 154–159 (1988).

IEEE/OSA J. Lightwave Technol. (1)

S. Ura, T. Suhara, H. Nishihara, J. Koyama, “An Integrated-Optic Disk Pickup Device,” IEEE/OSA J. Lightwave Technol. LT-4, 913–918 (1986).
[CrossRef]

Proc. Soc. Photo-Opt. Instrum. Eng. (1)

M. Ojima, T. Nakao, H. Sukeda, N. Ohta, H. Yasuoka, T. Nishida, M. Terao, “High Speed Overwritable Optical Disk,” Proc. Soc. Photo-Opt. Instrum. Eng. 899, 154–159 (1988).

Other (3)

A. Arimoto, K. Muraoka, T. Shimano, K. Senda, S. Ishikawa, “Wave Guide Optical Deflector for Optical Disk Actuator Using Surface Acoustic Wave Device,” in Technical Digest, Conference on Integrated and Guided-Wave Optics (Optical Society of America, Washington, DC, 1989), paper MBB5.

G. Bouwhuis, “Apparatus for Reading a Flat Record Carrier,” U.S. Patent3,876,842 (1975).

M. Ishikawa, Y. Ohba, Y. Watanabe, H. Sugawara, M. Yamamoto, “Room-Temperature cw Operation of Transverse-Mode-Stabilized 680-nm InGaAlP Visible Light Laser Diodes Grown by MOCVD,” in Technical Digest, Conference on Lasers and Electro-Optics (Optical Society of America, Washington, DC, 1986), paper TUQ1.

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Figures (10)

Fig. 1
Fig. 1

Comparison of access time between optical and magnetic disk systems.

Fig. 2
Fig. 2

Optical pickup using the SAW deflector.

Fig. 3
Fig. 3

Deflection bandwidth.

Fig. 4
Fig. 4

Deflection speed properties.

Fig. 5
Fig. 5

Wavefront aberration.

Fig. 6
Fig. 6

Comparison of the optical pickup configuration: (a) SAW pickup and (b) conventional pickup.

Fig. 7
Fig. 7

Five-segmented detectors in this experiment.

Fig. 8
Fig. 8

Tracking experiment: (a) TR off and (b) TR on.

Fig. 9
Fig. 9

Tracking jump experiment.

Fig. 10
Fig. 10

Compact SAW deflector.

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