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 Laser Pointer Forums - Discuss Laser Pointers Is it possible to achieve the same power density using an LED as with a laser diode?

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07-13-2016, 01:00 AM #17
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Cyparagon
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Re: Is it possible to achieve the same power density using an LED as with a laser dio

I've seen a few confocal microscopy teardowns, and the power is typically in the range of a few 10s of mW. They don't scan a line in one dimension, they scan a dot in 2 dimensions. Why have you chosen a line approach?

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07-13-2016, 05:29 AM #18
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ArKi
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Re: Is it possible to achieve the same power density using an LED as with a laser dio

The short answer is that we think that we can build a faster scanning system using a line.

07-14-2016, 11:55 AM #19
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icecruncher
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Re: Is it possible to achieve the same power density using an LED as with a laser dio

Quote:
 Originally Posted by ArKi Hi everyone! I'm currently working on a project where I would like to focus a light source into a line. We are trying to achieve the highest power power density, and I was just wondering if it would be possible to use an LED, SLD, or some other light source to achieve the same power density as one could with say, a 1W laser diode? Assume you can using any number of focusing optics to achieve this power density. Also, it would be good to know if you use what power/brightness for an LED is equivalent to say, a 1W laser diode if you can use any focusing optics?

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Last edited by icecruncher; 07-14-2016 at 11:58 AM.

07-16-2016, 01:46 PM #20
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Atomicrox
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Re: Is it possible to achieve the same power density using an LED as with a laser dio

There are 520nm (\$200 if you want 1W, which I think is way too much, about \$30 for 80mW) and 488nm (about \$1000) diodes available. The 561nm will have to be DPSS and won't be cheap.
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405nm: NewWish (29.1mW avg|5mW rtd) | Dilda (81.5mW avg|200mW rtd) | 501B by Blord (633mW pk)
low 445nm: C6 from Survival Lasers (1351mW pk|1289mW avg|1100mW rtd)
high 450nm: NewWish (12.6mW pk|5mW rtd) | Dominator by Blord (3010mW pk|2779mW avg during 5min)
462nm: 501B by Atomic (1507mW avg)
473nm: BWB-10-OEM labby by CNI (10mW rtd)
520nm: MXDL pen by DTR (31.6mW pk|28.8mW avg)
532nm: NewWish (28.6mW pk|26.8mW avg|10mW rtd) | Dapper (30.3mW pk) | Classic (120.0mW pk|103.1mW avg|100mW rtd) | "The Green Box" by Atomic (176.7mW pk|140.0mW avg)
589nm: Spartan from Dragon Lasers (58.4mW pk|37mW avg|50mW rtd)
632.8nm: HeNe pointer by Atomic (0.68mW rtd)
635nm: NewWish (4.6mW avg|5mW rtd)
638nm: Classic from Lazerer (409.3mW pk|389.4mW avg|415mW rtd)
650nm: NewWish (10.6mW pk|5mW rtd) | Dilda (216.3mW avg|200mW rtd)
685nm: laser-in-a-box by Atomic (30.4mW pk|29.3mW avg) | 501B by Atomic (32.4mW avg)
780nm: module (2.7mW avg|5mW rtd)
808nm: Classic modded from a 532nm (162mW avg)
850nm: module (8.8mW avg|7mW rtd)
980nm: NewWish (81mW pk|5mW rtd) | 2nd line around 490nm

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Last edited by Atomicrox; 07-16-2016 at 01:48 PM.

 Tags focusing, laser, led, power density

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