Optical module with multiple beams for near-field recording

Author

Shih, Hsi-Fu ; Chen, Chi-Feng ; Lin, Jian-Shian

Author_Institution

Department of Electronic Engineering, Ching-Yun Institute of Technology, 229, Chien-Hsin Rd., Jung-Li 320, Taiwan, R.O.C.

fYear

2002

fDate

11-11 July 2002

Firstpage

54

Lastpage

56

Abstract

High-density and high-speed have been the trend of developing next generation optical storage technologies. Rauch et al.[1] proposed a hybrid recording system called wave-guide hybrid advanced MEMS (WHAM) by using two kind of fields. One is an optical beam that controls the track width and the other is the magnetic field that controls bit length as shown in Fig. 1. The recorded mark is confined within the small cross-region and therefore the recording density is effectively increased. Kim et al.[2] further designed the module by integrating waveguide and two-dimensional toroidal optical elements into a substrate. It can be easily fabricated by MEMS technologies.

Keywords

error correction; error statistics; optical disc storage; optical modulation; pattern recognition; 11 bit; 12 bit; 3 bit; DDPR; LLM; LSB limited modulation; data detection using pattern recognition method; data error reduction; data modulation method; data symbols; input data conversion table; least significant bit; multi-level data recording; multi-level optical recording; optical discs; High speed optical techniques; Laser beams; Lenses; Micromechanical devices; Optical beams; Optical collimators; Optical diffraction; Optical recording; Optical refraction; Optical waveguides;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Memory and Optical Data Storage Topical Meeting, 2002. International Symposium on

Conference_Location

Waikoloa, HI, USA

Print_ISBN

0-7803-7379-0

Type

conf

DOI

10.1109/OMODS.2002.1028565

Filename

1028565