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Here's a link to a recent news brief:
Blu-ray.com - Sharp Readies BD-100 Blu-ray Laser
Apparently this new 'facet passivation' technique will allow longer lifetime, greater power(s), and better tolerance to high temps. All good things for laser pointers. Appears those monster 1/2 watt bluray diodes may be close to production now.
Blu-ray.com - Sharp Readies BD-100 Blu-ray Laser
Sharp was able to advance Blu-ray laser diode technology by using a new method to process the edge face of the resonator. Typically, the crystal in the semiconductor is protected by a dielectric film. The consumer electronics company found that by introducing an aluminum oxynitride divider, performance of the diode increased exponentially.
Apparently this new 'facet passivation' technique will allow longer lifetime, greater power(s), and better tolerance to high temps. All good things for laser pointers. Appears those monster 1/2 watt bluray diodes may be close to production now.