This week, Sony launched the first commercial 400mW blue-violet laserdiode for Blu-ray.
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The company has developed patented high-performance laserdiode technology platform that is also used in telecommunications, medical devices and sensors.
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One laserdiode generates an almost punctiform luminous flux on a few thousandths of a millimetre. Ya, well, no fine.
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A higher slope efficiency of 70% was also obtained with a 50-W pump laserdiode with more suitable emission characteristics.
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Devices have lasing thresholds below 0.6 nJ per pulse and can be efficiently pumped via free-space optics using a compact and low-cost green laserdiode.
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To quote the guy at Osram: Laserdiodes are particularly impressive due to their small size.
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This finding favourably provides the advanced light-emitting performance for OLEDs and organic semiconductor laserdiodes from the aspect of the suppressed efficiency rolloff.
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The delay happened because the production of blue laserdiodes, a key component of the games console's Blu-ray optical disc drive, had fallen behind schedule.