Where are all the super-efficient lasers?

[geneiusxie]

Are blue/green/red lasers more efficient than LEDs? I have read documents stating that VCSELs (a type of vertical chip laser) convert 66% of electrical energy to light - compared to about 33% for the most efficient white LEDs. The only problem is whenever I google actual VCSELs for sale, they're always designed for data transmission so they have really low output power and efficiency - more like 6% or so (at least, according to my crude calculations.)

So where can I buy any of the super-efficient and lasers these people keep writing about? Digikey and Mouser don't really have many in stock (at least not for a low price)

 

[IRstuff]

It doesn't much matter, does it? Visible lasers have to less than 1 mW of output power to be compliant to ANSI Z136.

TTFN
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[MacGyverS2000]

What are you trying to accomplish? You've asked this question before, but I don't understand what application you're trying to fill...

Dan - Owner

http://www.Hi-TecDesigns.com

 

[MacGyverS2000]

Oh, and this really isn't the proper forum for this question...

Dan - Owner

http://www.Hi-TecDesigns.com

 

[geneiusxie]

I'd like to be able to make a super efficient LCD backlight using laser diodes instead of LEDs. Would sure make our mobile devices have better battery life.

I asked here because someone pointed me to this forum. Where should I be asking this question?

 

[MacGyverS2000]

Lasers are coherent light beams... using them to make a backlight is, well, inefficient.

Dan - Owner

http://www.Hi-TecDesigns.com

 

[IRstuff]

If you want your battery to last longer, turn off your GPS and location services

TTFN
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