Abstract
Direct overwriting on a magnetic triple-layer magneto-optical disk has been performed by modulating the light intensity. Previously, direct overwriting had be performed only on a double-layer disk. The initializing field was reduced to 3.5 kOe for the triple-layer disk, compared with more than 5 kOe for a double-layer disk. A high C/N ratio of 50 dB was obtained for an overwritten bit length of 0.75 Am without any residual former signal. Margins of the light power for bits to be overwritten at an acceptable error rate are more than ±24 % for both the high and the low light intensity. The magnetic triple-layer disk is a promising medium for direct overwriting by light intensity modulation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
