Old 06-29-2010, 11:34 PM #1
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Default Stonetek 500mW 808nm Laser Diodes - Any Experience?

Does anybody have any experience with the 500mW 808nm laser diodes from Stonetek? The datasheet doesn't show anything, so I'd like to hear from anybody that has experience with these diodes. Here's a link: 500mw OEM 808nm 5.6mm diodes ! [Stonetek808_500] - $15.99 : StoneTek Electronics, Your Laser Parts Store

What I'm after is a good operating current, I don't have a LPM to ramp up the current to these things until they hit 500mW so some input would be great.

I've wanted to get into IR for years now but I've never gotten around to it, so this laser would be a good start. And yes, I have IR goggles rated for OD7 at 808nm.


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Old 06-30-2010, 12:52 PM #2
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Default Re: Stonetek 500mW 808nm Laser Diodes - Any Experience?

The Data sheet says they typical current is about 240mA and max would be 280mW. But it also says the Po at that current is aroun 200mW. That's kinda lame for a 1/2W diode. However, I doubt it can be pushed up to 1/2 a watt anyway. Take the advertised Po and multiply it by about .7, That is the RMS constsnt that comes up in electronics all the time.

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Anyways, I bet the diode could be safely run at about 350mW. But that'll just be an educated guess since I've never dealt with that diode. So I wouldn't know what current to set it to. I'm sure someone will chime in who knows. I'm interested in this too.

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Old 06-30-2010, 04:31 PM #3
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Default Re: Stonetek 500mW 808nm Laser Diodes - Any Experience?

All of the 808nm diodes he sells have the same 200mW datasheet. I went on eBay and looked up 500mW laser diode and the diodes Snoctony sells take 650mA. So 650mA it is, I'll buy one soon.
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