High-Speed Servo Technology For Optical Disk Drive

Kikuji Katoh; Akinori Watabe; Manabu Yamamoto; Hiroshi Nakanishi; Ichiro Yamada

doi:10.1117/12.944599

2 June 1988 High-Speed Servo Technology For Optical Disk Drive

Kikuji Katoh, Akinori Watabe, Manabu Yamamoto, Hiroshi Nakanishi, Ichiro Yamada

Proceedings Volume 0899, Optical Storage Technology and Applications; (1988) https://doi.org/10.1117/12.944599
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

This paper describes servo technology for the improvement of data transfer rate and access time in a high-speed optical disk drive. First, read-write characteristics of the continuous composite servo format and the sampled servo format are discussed in terms of the recording power conditions needed to achieve a stable data read-out. Next, An optical head with the laser diode and optics separated from the positioner carriage is presented. The separated optical head's tracking servo stability and spot collimating performance are discussed. Finally, a new two-dimensional rotary lens actuator with a high resonant frequency is proposed.

Citation Download Citation

Kikuji Katoh, Akinori Watabe, Manabu Yamamoto, Hiroshi Nakanishi, and Ichiro Yamada "High-Speed Servo Technology For Optical Disk Drive", Proc. SPIE 0899, Optical Storage Technology and Applications, (2 June 1988); https://doi.org/10.1117/12.944599

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