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16 July 1986 Laser Diodes for DRAW Optical Disk System
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Abstract
Laser diode for DRAW optical disk systems has to have not only high power characteristics (writing) but also low noise characteristics (reading) at low power. However, few of so-called "high power lasers" have low noise. In this paper, we present a new high power low noise laser, which can be volume produced at low cost. The laser have wavelength of 780nm, power output of 25mW (50% duty cycle), and high S/N ratio of 90dB (f=20kHz, BW=300Hz, opt-ical feedback ratio < 1%) at 3mW CW. In addition, it has a lifetime enough to write an optical disk for 50,000 hours.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
K. Yamashita, S. Nagai, K. Tamari, M. Kubota, and S. Takamiya "Laser Diodes for DRAW Optical Disk System", Proc. SPIE 0610, Scientific and Engineering Applications of Commercial Laser Devices, (16 July 1986); https://doi.org/10.1117/12.956402
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