| 摘要 |
The invention relates to information technologies and can be used in the systems of data archival storage. The data readout system relates to systems for reading out from WORM-type optical disk (single recording and multiple reading out), which substrate is made of high-stable monocrystalline material. The system for data archival storage comprises a laser, focusing lens, beam splitting cube, multisite photoreceiver, diffraction lattice and quarter-wave plate. Between the focusing lens and data carrier a monocrystalline plate is arranged, this has inverse value of difference in refraction indices of regular and irregular beams against value of difference in refraction indices of regular and irregular beams of optical disk substrate. The technical result is in enhancement of reliability of data reproduction from optical carriers. |
