High-density magneto-optical recording using a blue laser and CAD-MSR media

Masataka Shinoda; Yasuhito Tanaka; Yuuji Akiyama; Shingo Imanishi; Masayoshi Kanno

doi:10.1117/12.399341

18 September 2000 High-density magneto-optical recording using a blue laser and CAD-MSR media

Masataka Shinoda, Yasuhito Tanaka, Yuuji Akiyama, Shingo Imanishi, Masayoshi Kanno

Proceedings Volume 4090, Optical Data Storage 2000; (2000) https://doi.org/10.1117/12.399341
Event: Optical Data Storage, 2000, Whistler, BC, Canada

Abstract

We have investigated high density magneto-optical recording on a center aperture detection (CAD) type of magnetically induced super resolution (MSR) disk using a GaN blue laser diode. The substrate treatment by an ultraviolet rays irradiation, the optimum thermal structure, and the stabilization of copy process by tripled layer recording films were applied to improve the CAD-MSR media for a blue laser. The carrier to noise ratio of 0.227 micrometers mark length was 43 dB and the jitter without cross-talk from adjacent tracks was 10.3% at the areal density of 10.8 Gbit/in². We confirmed that a blue laser is the most promising method in order to realize the higher areal density for CAD-MSR disk.

Citation Download Citation

Masataka Shinoda, Yasuhito Tanaka, Yuuji Akiyama, Shingo Imanishi, and Masayoshi Kanno "High-density magneto-optical recording using a blue laser and CAD-MSR media", Proc. SPIE 4090, Optical Data Storage 2000, (18 September 2000); https://doi.org/10.1117/12.399341

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