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Old 07-07-2010, 04:57 AM #1
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Default What ever happened to VSCELs?

What ever happened to VSCEL laser diodes? They seemed efficient and promising.

Vertical-cavity surface-emitting laser - Wikipedia, the free encyclopedia

Quote:
n 2007, more than 200 W of CW output power was reported from a large (5 5mm) 2D VCSEL array emitting around the 976 nm wavelength,[7] representing a substantial breakthrough in the field of high-power VCSELs. The high power level achieved was mostly due to improvements in wall-plug efficiency and packaging. In 2009, >100 W power levels were reported for VCSEL arrays emitting around 808 nm.[8]



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Old 07-07-2010, 10:23 PM #2
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Default Re: What ever happened to VSCELs?

[QUOTE=Uranium;734383]What ever happened to VSCEL laser diodes? They seemed efficient and promising.

They are still around in IR applications, and actually making quite a impact.

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Old 07-08-2010, 12:26 AM #3
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Default Re: What ever happened to VSCELs?

They're harder to make than edge-emitters, but they are still around. Edge emitters are just easier and cheaper.
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Old 07-08-2010, 01:55 AM #4
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Default Re: What ever happened to VSCELs?

I suppose the technologu was abandod for pump diodes in favour of edge-emitting devices. This doenst mean we won't be seeing any further developmnt though - perhaps they will be useful for projectors and such at some point in the future,
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Old 07-08-2010, 04:08 AM #5
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Default Re: What ever happened to VSCELs?

I wouldn't bet on it. Diode arrays are cheap.
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Old 07-12-2010, 02:12 AM #6
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Default Re: What ever happened to VSCELs?

I'm not betting on anything... but he technology may just find new applications, even if it has been abandonded for a while. For now, projection is done with multimode side emitters, but there will be a point where better resolutions are required, going back to single mode units. That could easily take a decade
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