Electro-optic scanner for optical disk fine tracking system

Jinhui Zhai; Steve Schroeck; Yuhong Huang; William C. Messner; Daniel D. Stancil; Tuviah E. Schlesinger

doi:10.1117/12.351645

2 July 1999 Electro-optic scanner for optical disk fine tracking system

Jinhui Zhai, Steve Schroeck, Yuhong Huang, William C. Messner, Daniel D. Stancil, Tuviah E. Schlesinger

Proceedings Volume 3787, Optical Scanning: Design and Application; (1999) https://doi.org/10.1117/12.351645
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Electro-optic (EO) scanners can be used as fine tracking actuators to improve the servo bandwidth in future high density/high data-rate optical disk drives. In this paper we report on the use of an EO scanner in a new optical tracking system. Track following has been accomplished with a servo bandwidth of 200 kHz and we have demonstrated track switching between nine tracks using only an EO scanner. A fine tracking experiment using an EO scanner has been demonstrated in parallel with a voice-coil actuated lens to expand the fine tracking range. Significant improvement in track switching speed and track following are demonstrated with the scanner/lens actuators as compared to tracking with the lens actuator alone.

Citation Download Citation

Jinhui Zhai, Steve Schroeck, Yuhong Huang, William C. Messner, Daniel D. Stancil, and Tuviah E. Schlesinger "Electro-optic scanner for optical disk fine tracking system", Proc. SPIE 3787, Optical Scanning: Design and Application, (2 July 1999); https://doi.org/10.1117/12.351645

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