Melles Griot HeNe gas laser

[weeba2kv]

Well i was @ a little party last night and this guy started to talk about lasers I'm like wtf gas ? red ? HeNe ? SHOW ME THE CANDY DUDE so he took out his laser , here are a few pics i made just to share

75 mW max 632,8 nm tube is about 100 cm long realy super clean bright tight beam
















Video really sucks
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Oh and btw this laser tube with power supply will be on sale soon , not sure if it's going to be on E-bay i will discuss that with the guy pretty soon this month
The laser unit itself is not damaged not used much no scratches and comes from a university here in holland ( the netherlands )
* more info will come on this thread *

[Jem]

Hi

That's a nice 632.8nm HeNe laser, perfect for holography. I have two of them

Don't be fooled by the sticker that shows the output as maximum 75mW. It should have an output of ~35mW. If it's a new laser this can perhaps be brought up to a maximum of 40mW if you know what you're doing, I really wouldn't advise this though as you'll probably end up snapping the mirrors off the tube .

These lasers seem to be very susceptible to drifting off power. If you place a meter in the beam and notice what happens when you apply a gentle pressure to the back or front of the case. You'll notice the power either goes up or down. Best thing is to switch it on and leave it for a minimum of four hours before measuring the output, this ensures thermal stability.

Cheers

Jem

[weeba2kv]

Yes the output is about 35 mW as the PDF file informs on griot.com

But 632.8 is really bright

[weeba2kv]

Update.
The laser comes with the original box and the guy is asking €2000 ( USD$2.638,20 )
for it.

[Jem]

Update.
The laser comes with the original box and the guy is asking €2000 ( USD$2.638,20 )
for it.

Well, not wanting to p*ss on his bonfire, may I wish him the very best of luck. It's more likely worth ~750/100 Euro max, and that's on a good day with the wind blowing in the right direction