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Old 05-25-2011, 05:29 PM #1
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Default Will this driver work with this diode?

Will this 808nm driver work with a 808nm 1W diode. It says 100mw-500mw so I'm not sure.
808nm 100-500mw Laser Diode Driver Reverse Protection | eBay


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Old 05-25-2011, 06:00 PM #2
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Default Re: Will this driver work with this diode?

The driver is adjustable from 0 - 580ma. Look at your diodes spec sheet and see if the diode can be run within those current range. At first glance it looks like it will be under powering the diode, but I do not have experience with 808 diodes, so I can't be sure with out a spec sheet.
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Old 05-25-2011, 08:11 PM #3
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Default Re: Will this driver work with this diode?

It'll work, but the output will be about 1/2W. You can use two drivers in parallel to get the current you want. Better to build your own though.
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Old 05-26-2011, 01:40 AM #4
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Default Re: Will this driver work with this diode?

I don't have the diode yet but I'm thinking of getting something like this:
808nm diode | eBay

I need about 1.2A for max power so I guess it wont work.

What would I need to build my own driver? I have a basic idea of how to do it but have never built one.
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Old 05-26-2011, 01:51 PM #5
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Default Re: Will this driver work with this diode?

I would try getting this diode
It is 500 mW diode which is pretty good, and you can use the driver you found at about 400-450 mA.
Correct me if I'm wrong but in theory it should work well.
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Old 05-26-2011, 06:19 PM #6
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Default Re: Will this driver work with this diode?

I really don't think there is a point in getting a 500mw for $22 when I can get a 1W for $12. If I put either one together with that driver I'll get the same amount of power out and maybe a bit more out of the 1W.

But I'm thinking just for starters, since I've never built an 808nm, I'll get one of the 300mw diodes for $4 and put it together with the driver. Maybe I'll make the 1W after I get the 300mw to work.
I actually have the 300mw right now but I did something really stupid and I think I fried it. How would I tell if I fried it? cuz they're kinda invisible and it's hard to tell. is there any way to test it before I buy a new one?
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Old 05-26-2011, 06:57 PM #7
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Default Re: Will this driver work with this diode?

Do you have the appropriate safety glasses for this laser?

Get an old phone and run the diode, put the phone on camera mode and it will be easy to tell if its outputting IR. Alternatively you can use an old camera, webcam or anything with a camera that does not have an IR filter on it.
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Lasers!
10.6um - >40W CO2 Laser - 25W RF excited CO2 Laser*
685nm - Being built!
660nm - 250mW LOC PowerLight B50 Host - 100mW WL pulsar
635nm - 430mW C6 Host*
632.8nm - Red He-Ne laser ~1mW
593.5nm - Regal 5
542.8nm - Green He-Ne laser ~2.5mW
532nm - 620mW+ lasersman Firedragon III* - 100mW PGL-III-M from JETLASERS* - 70mW Rayfoss Host*
~~~ - 175mW Rayfoss Host - <5mW WL Core - 55mW DinoDirect review laser*

488nm - On the hoist
473nm - 2x CNI lab lasers ~40mW
445nm - 3W Big Boyz Laser - >1.1W Cree C6 Host - 650mW WL Arctic
405nm - 65mW GLP-405 Aquarius host - 160mW 6x Blu-ray MXDL Host
Total: 71,868.5 mW

Goggles!
Laser glow LSG-532-Sport protective eye goggles OD 7+ 190-532nm HIGHLY RECOMMENDED!!
Jetlasers wrap around 190-540nm OD4+ goggles*
Eagle Pair Red OD4+ goggles
Scopeguy20 Blublockers for 405nm lasers!

* indicates a review has been done, on this item.

Check out my How to Build a Selectable Dummy Load Thread!
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Old 05-27-2011, 12:00 AM #8
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Default Re: Will this driver work with this diode?

I don't have goggles for it. I was thinking of getting some before starting the project but I looked on ebay and they're expensive. I got 405nm-532nm goggles for $20 but the lowest I found for 808nm was $40.
Any place I can get a pair for cheap?
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Old 05-27-2011, 12:04 AM #9
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Default Re: Will this driver work with this diode?

Are these good? $30
Protection Glasses for 808nm~850nm Infrared Laser

I might get them if I can't find anything cheaper.
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