Title :
The characteristics of a dual-layer optical disk with read-only and erasable functions
Author :
Yang, Bor-Wen ; Shieh, Han-Ping D.
Author_Institution :
Inst. of Electro-Opt. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
A dual-layer optical disk comprised of a read only layer and a phase-change layer was designed to perform the read-only and erasable dual-functionality in an optical disk. With the properly designed dual-layer disk structure, 23 mW of write power was adequate to write data marks on the erasable phase-change layer; simultaneously, equal magnitude of sufficient radiofrequency readout signals could be obtained on both its data layers. The analyzes of its recording characteristics demonstrated the feasibility of the dual-functional optical disk
Keywords :
optical disc storage; 23 mW; PC-ROM; dual-functional optical disk; dual-layer optical disk; erasable function; interlayer crosstalk; multiple data layer; phase-change layer; radiofrequency readout signal; read-only function; Disk recording; High speed optical techniques; Laser theory; Lasers and electrooptics; Material storage; Optical crosstalk; Optical design; Optical films; Optical recording; Read-write memory;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.735767
