정보저장시스템학회:학술대회논문집
- 2005.10a
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- Pages.119-123
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- 2005
Random Signal Characteristics of Super-RENS Disc
Super-RENS Disc의 Random 신호 특성
- Bae Jaecheol ;
- Kim Jooho ;
- Kim Hyunki ;
- Hwang Inho ;
- Park Changmin ;
- Park Hyunsoo ;
- Jung Moonil ;
- Ro Myongdo
- 배재철 (삼성전자(주) 디지털미디어연구소) ;
- 김주호 (삼성전자(주) 디지털미디어연구소) ;
- 김현기 (삼성전자(주) 디지털미디어연구소) ;
- 황인오 (삼성전자(주) 디지털미디어연구소) ;
- 박창민 (삼성전자(주) 디지털미디어연구소) ;
- 박현수 (삼성전자(주) 디지털미디어연구소) ;
- 정문일 (삼성전자(주) 디지털미디어연구소) ;
- 노명도 (삼성전자(주) 디지털미디어연구소)
- Published : 2005.10.01
Abstract
We report the random pattern characteristics of the super resolution near field structure(Super-RENS) write once read-many(WORM) disc at a blue laser optical system(laser wavelength 405nm, numerical aperture 0.85) and the Super-RENS read only memory(ROM) disc at a blue laser optical system(laser wavelength 659nm, numerical aperture 0.65). We used the WORM disc of which carrier-to-noise ratio (CNR) of 75nm is 47dB and ROM disc of which carrier-to-noise ratio (CNR) of 173nm is 45dB. We controlled the equalization (EQ) characteristics and used advanced partial-response maximum likelihood (PRML) technique. We obtained bit error rate (bER) of 10-3 level at 50GB WORM disc and bite error rate of 10-4 level at 50GB level ROM disc. This result shows high feasibility of Super-RENS technology for practical use.