Title :
Small integrated optical head device using a blue-violet laser diode for Blu-ray Disc system
Author :
Manoh, Kiyoshi ; Yoshida, Hiroshi ; Kobayashi, Takashi ; Takase, Motohiro ; Yamauchi, Kiyoshi ; Fujiwara, Satoshi ; Ohno, Tsuyoshi ; Nishi, Noriaki ; Ozawa, Masafumi ; Ikeda, Masao ; Tojyo, Tsuyoshi ; Taniguchi, Tadashi
Author_Institution :
AV/IT Dev. Group, Sony Corp., Tokyo, Japan
Abstract :
We report the first integrated optical bead device using a blue-violet LD (laser diode), which is a key device for realizing a small and thin-shaped Blu-ray Disc drive. While integrating seven optical parts into one device, by adopting a molded compound lens with high transmissivity to the blue-violet wavelength, the small size of 11 mm × 6 mm × 4.1 mm has been realized. At this time, we have played back a Blu-ray Disc media using this small optical bead device and have achieved a good jitter value of 7.3%.
Keywords :
disc drives; integrated optics; jitter; lenses; optical disc storage; semiconductor lasers; 11 mm; 4.1 mm; 6 mm; Blu-ray Disc media playback; Blu-ray Disc system; blue-violet LD; blue-violet wavelength lens transmissivity; integrated optical head devices; laser diodes; molded compound lens; optical head size; optical parts integration; playback jitter value; thin-shaped disc drive; Assembly; Diode lasers; Holographic optical components; Holography; Integrated optics; Lenses; Magnetic heads; Mirrors; Optical devices; Optical films;
Conference_Titel :
Optical Memory and Optical Data Storage Topical Meeting, 2002. International Symposium on
Print_ISBN :
0-7803-7379-0
DOI :
10.1109/OMODS.2002.1028675
