Test System for Measuring Mechanical and Recording Characteristics of Optical Disks

Masato Yamamoto; Kenta Mikuriya; Masahiro Sato; Masuo Hanawaka; Akira Ohya

doi:10.1364/ODS.1987.ThA5

Topical Meeting on Optical Data Storage
Technical Digest Series (Optica Publishing Group, 1987),
paper ThA5
•https://doi.org/10.1364/ODS.1987.ThA5

Test System for Measuring Mechanical and Recording Characteristics of Optical Disks

Masato Yamamoto, Kenta Mikuriya, Masahiro Sato, Masuo Hanawaka, and Akira Ohya

Optical Data Storage 1987

Stateline, Nevada United States
11–13 March 1987
ISBN:

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M. Yamamoto, K. Mikuriya, M. Sato, M. Hanawaka, and A. Ohya, "Test System for Measuring Mechanical and Recording Characteristics of Optical Disks," in Topical Meeting on Optical Data Storage, Technical Digest Series (Optica Publishing Group, 1987), paper ThA5.

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Abstract

We have developed two test systems for measuring, respectively, the mechanical and optical (recording) characteristics of optical disks. The mechanical characteristics test system measures axial and radial runout, etc. It has optical displacement sensors with accuracy of 0.1 um in the axial direction and 0.01 um in the radial direction. The optical (recording) characteristics test system measures reflectivity, CNR, error rate, defects, etc. The system has a SNR of better than 70 dB.

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