Share Email Print

Proceedings Paper

Twin Beam Laser Diode for Optical Disk Memory
Author(s): R. Hattori; T. Yagi; K. Yamashita; H. Kagawa; M. Ishii; S. Takamiya; S. Mitsui
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We report here a novel new twin beam laser diode consisting of a high power laser and a low noise laser in one chip, for writing and reading an optical disk, respectively. The maximum light output of the high power laser is typically 45mW CW, and the signal to noise ratio of low noise laser is higher than 90dB under such conditions that the operating power is 3mW CW, the frequency is 20KHz, the band width is 300Hz and the range of optical feedback ratio is 0.1-5.0%. Moreover, the up-side-down mounted device shows a good performance for the thermal cross-talk between high power and low noise laser.

Paper Details

Date Published: 20 April 1987
PDF: 4 pages
Proc. SPIE 0740, Laser Diode Optics, (20 April 1987); doi: 10.1117/12.939728
Show Author Affiliations
R. Hattori, Mitsubishi Electric Corporation (Japan)
T. Yagi, Mitsubishi Electric Corporation (Japan)
K. Yamashita, Mitsubishi Electric Corporation (Japan)
H. Kagawa, Mitsubishi Electric Corporation (Japan)
M. Ishii, Mitsubishi Electric Corporation (Japan)
S. Takamiya, Mitsubishi Electric Corporation (Japan)
S. Mitsui, Mitsubishi Electric Corporation (Japan)

Published in SPIE Proceedings Vol. 0740:
Laser Diode Optics
David W. Kuntz, Editor(s)

© SPIE. Terms of Use
Back to Top