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Proceedings Paper

Random pattern signal characteristics of super-RENS disk in blue laser system
Author(s): Jooho Kim; Inoh Hwang; Hyunki Kim; Duseop Yoon; Hyun-Soo Park; Kiuhae Jung; Insic Park; Junji Tominaga
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Paper Abstract

We report the random pattern signal characteristics of the super resolution near field structure (Super-RENS) disk in a blue laser optical system. (Laser wavelength 405 nm, numerical aperture 0.85) We introduced new structure for blue laser system, which results in 43 dB carrier to noise ratio (CNR) at the 75 nm mark length signal (which is equivalent to 50 GB capacity with 0.32 micrometer track pitch) and much better readout stability were obtained. The relatively clear eye pattern, phase locked loop (PLL) state and data to clock jitter of around 20% for a 50 GB (2T:75 nm) random pattern signal were realized.

Paper Details

Date Published: 9 September 2004
PDF: 6 pages
Proc. SPIE 5380, Optical Data Storage 2004, (9 September 2004); doi: 10.1117/12.557100
Show Author Affiliations
Jooho Kim, Samsung Electronics Co., Ltd. (South Korea)
Inoh Hwang, Samsung Electronics Co., Ltd. (South Korea)
Hyunki Kim, Samsung Electronics Co., Ltd. (South Korea)
Duseop Yoon, Samsung Electronics Co., Ltd. (South Korea)
Hyun-Soo Park, Samsung Electronics Co., Ltd. (South Korea)
Kiuhae Jung, Samsung Electronics Co., Ltd. (South Korea)
Insic Park, Samsung Electronics Co., Ltd. (South Korea)
Junji Tominaga, National Institute of Advanced Industrial Science and Technology (Japan)


Published in SPIE Proceedings Vol. 5380:
Optical Data Storage 2004
B. V. K. Vijaya Kumar; Hiromichi Kobori, Editor(s)

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