Sharp Corporation has announced the development of a new 500 mW semiconductor laser for triple- and quadruple- layer Blu-ray discs.
The semiconductor laser is blue-violet, producing an optical output up to 500 mW and 405 nm wavelength of oscillation under pulsed operation. The new laser has been proven reliable over 1,000 hours of testing.
The device is designed to be used in Blu-ray Disc recorders, and can write at 8 x speed on both triple- and quadruple- layer discs
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