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Is a 650/405nm 303 Laser DPSS?

Captain Cranberries

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(New to the forms, and I didn't know where to put this. I'm also sure this question has been asked before, but I don't really know how to navigate the forms, so I'm asking it anyway.)

I'm brand new to lasers, and I don't really know what I'm doing, so I need to differ to a higher authority. I bought a three piece set of 303 "5mw" lasers recently, and I wanted to know if anyone happened to already know the answers to some of my questions.

The biggest and most important question I have is about the mechanism of the laser itself. Unfortunately, it was only after I bought the lasers that I found out the 532nm laser produces a significant amount IR radiation, and I don't have anything to protect against that, so I won't be using it any time soon. My question is, are the 650/405nm lasers also DPSS? If they are, do they also produce a significant amount of IR radiation? Because if so, I would like to know before they arrive at my door.
 



Gadget

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No. The 650 and 405 are direct diode lasers. No IR is produced.

-G
 

Immo1282

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If you're not protecting against the visible light from the lasers, you should consider this too though - as the only reason the IR is more hazardous than the visible light is because you cannot see it (and your blink reflex won't protect you either, though 303s are going to more powerful than this can protect you against anyway).

You will probably want to get multiple sets of goggles as no pair will protect you against 405nm, 532nm and 650nm all at the same time.
 
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paul1598419

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What makes you think that these 532nm lasers produce a "significant"amount of IR? They don't. At most the amount of IR is 20% of the actual output of the 532nm line. If the green beam doesn't hit you in the eye, you shouldn't worry about the IR. The other two wavelengths you asked about are direct diode lasers. BTW, none of these are 5 mW lasers. There are all significantly over spec. The 532nm is likely somewhere between 50 mW and 80 mW. The 650nm one could be as high as 200 mW and the 405nm one is likely around 80 to 90 mW.
 

Captain Cranberries

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If you're not protecting against the visible light from the lasers, you should consider this too though
BTW, none of these are 5 mW lasers. There are all significantly over spec.
Thanks to everyone who replied to my question, you've been very clear and very helpful. I should probably clarify, I do indeed have eyewear that will protect against the green, blue/violet, and red lasers. I was concerned because I wouldn't be properly protected against the IR radiation should there be an accident. Even if the IR radiation is only about 20% of a 50-80mw green laser, that would still be something near equivalent to a 10-15mw IR laser directly in my eyes. (Not sure if that's how that actually works, but the numbers are probably pretty close, right?)

Also, to address paul1598419's point, I'm aware that these are absolutely not 5mw lasers; I knew that going in. That's why I put "5mw" in quotation marks in my first post.

(Edited to add quotes & correct a grammar error.)
 

Unpairedelectron01

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Get yourself a pair of safety glasses that protect against both green and IR (these are rather common) and you wont have to worry about either wavelength.
 

paul1598419

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If this amount of IR concerns you, then do get a pair of safety goggles that protect against. If for no other reason than your peace of mind.
 




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