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Sharp Develops Semiconductor Laser for Triple, Quadruple-layer Blu-ray Discs

Sharp Corp developed a blue-violet semiconductor laser whose optical output is as high as 500mW under pulsed operation for use in Blu-ray Disc (BD) recorders.

It has an oscillation wavelength of 405nm and a capability of writing at 8x speed on triple- and quadruple-layer Blu-ray discs. The company started volume production of a blue-violet semiconductor laser with 320mW pulsed output in June 2009.

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Nihilism2897d ago

and here i was thinking a blu ray firmware update would be enough to keep current blu ray players compatible with future blu ray disks with higher capacity......good to know another expensive piece of electronic equipment will soon be obsolete