2 June 1988 High-Speed Servo Technology For Optical Disk Drive
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Proceedings Volume 0899, Optical Storage Technology and Applications; (1988); doi: 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.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kikuji Katoh, Akinori Watabe, Manabu Yamamoto, Hiroshi Nakanishi, Ichiro Yamada, "High-Speed Servo Technology For Optical Disk Drive", Proc. SPIE 0899, Optical Storage Technology and Applications, (2 June 1988); doi: 10.1117/12.944599; https://doi.org/10.1117/12.944599
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KEYWORDS
Servomechanisms

Actuators

Head

Optical discs

Clocks

Lens design

Optical tracking

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