LarryDFW
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Nichia Exhibits 3 Watt Laser 445nm Diode !
Just received info on this 3 Watt 445nm Laser Diode shown at the Photonics West Exhibit.
''Feb 2, 2009
Atsuo Michiue from Nichia, detailed the performance of a buried-stripe 445 nm laser with a double quantum well active region and a 15 µm by 2 µm emitting area. No catastrophic optical damage - the common failure mode for high-power semiconductor lasers - was observed at output powers of up to 3W.
This edge-emitter produced a threshold current of 185 mA, a wall plug efficiency that peaked at 24.3 percent, and had an estimated lifetime of over 30,000 hours. Far-field beam divergence measurements were 38.2° in the perpendicular direction, and 11.7° in the parallel direction.
One member of the audience asked if Nichia had managed to push the wavelength of its lasers beyond 488 nm, only to be met by the terse reply “top secret”.''
Looks like higher power and more colors are on the way.
LarryDFW
Just received info on this 3 Watt 445nm Laser Diode shown at the Photonics West Exhibit.
''Feb 2, 2009
Atsuo Michiue from Nichia, detailed the performance of a buried-stripe 445 nm laser with a double quantum well active region and a 15 µm by 2 µm emitting area. No catastrophic optical damage - the common failure mode for high-power semiconductor lasers - was observed at output powers of up to 3W.
This edge-emitter produced a threshold current of 185 mA, a wall plug efficiency that peaked at 24.3 percent, and had an estimated lifetime of over 30,000 hours. Far-field beam divergence measurements were 38.2° in the perpendicular direction, and 11.7° in the parallel direction.
One member of the audience asked if Nichia had managed to push the wavelength of its lasers beyond 488 nm, only to be met by the terse reply “top secret”.''
Looks like higher power and more colors are on the way.
LarryDFW
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