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Olozhika
Wicked Lasers God
Joined: 20 Aug 2006
Posts: 1497
Picture(s): 196
Movie(s): 6
Location: United Kingdom
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 Posted: 5/05/07, 2:09 PM Post subject: HeNe Laser |
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This is just a thread were we can talk about HeNe lasers, since they are so popular with many people here on the forums and the fact that they are found in many laboratories this seemed like a good place to put it.
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Laser Ben
Wicked Lasers God
Joined: 26 Dec 2006
Posts: 1689
Picture(s): 376
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Location: Cupertino, California, USA
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| Posted: 5/05/07, 5:30 PM Post subject: |
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I have the most! In all of the colors too!
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Olozhika
Wicked Lasers God
Joined: 20 Aug 2006
Posts: 1497
Picture(s): 196
Movie(s): 6
Location: United Kingdom
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| Posted: 5/05/07, 8:28 PM Post subject: |
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Indeed you do Laser Ben, which one is your favorite and why?
I remember I almost won a 15mW HeNe 632.8nm laser, the price went too high for me at the time though, pitty, that would have been a nice laser to add to my collection.
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Laser Ben
Wicked Lasers God
Joined: 26 Dec 2006
Posts: 1689
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Location: Cupertino, California, USA
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| Posted: 5/05/07, 10:31 PM Post subject: |
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I still like my pulsed one. The only HeNe that can burn, It's a Coherent prototype Q-switched model.
Other than that I like the 604nM due to the rarity. I have a 2 Brewster Tube I'm watching. I want that.
My interest started when I saw a 247mW red HeNe. 27 Feet long and had a square beam. Must have been a bitch to align!
Would you like a HeNe? PM me!
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Shawndoe
Elite Laser
Joined: 09 Dec 2005
Posts: 248
Picture(s): 1
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| Posted: 5/21/07, 9:01 PM Post subject: |
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Ben,
Where did you see that? Easily the highest power hene I've heard of.
Have a good one.
Shawndoe |
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Laser Ben
Wicked Lasers God
Joined: 26 Dec 2006
Posts: 1689
Picture(s): 376
Movie(s): 8
Location: Cupertino, California, USA
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| Posted: 5/21/07, 10:13 PM Post subject: |
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It was at a local holography shop. I bought my 611nM one there. I believe it has gone out of business. I wonder what happened to the laser?
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TeleDu
Modified 10mW Greenie
Joined: 15 Sep 2006
Posts: 16
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| Posted: 5/23/07, 5:53 AM Post subject: |
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| Laser Ben wrote: |
| 27 Feet long |
Is it even transportable? |
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mr_munchies
Wicked Lasers Master
Joined: 08 Apr 2007
Posts: 519
Picture(s): 23
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| Posted: 5/27/07, 9:46 PM Post subject: |
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I'd guess not!  How expensive are they to make? Buy? How many different wavelengths can they run at? |
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Laser Ben
Wicked Lasers God
Joined: 26 Dec 2006
Posts: 1689
Picture(s): 376
Movie(s): 8
Location: Cupertino, California, USA
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| Posted: 5/27/07, 10:08 PM Post subject: |
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It's not expensive to make it's the gas mixture that's next to impossible to achieve, even with a Neon Sign shop doing it. They can lase on many different wavelengths but you're only going to get red on that you make.
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shikari_rock
Wicked Lasers Master
Joined: 26 Apr 2007
Posts: 979
Picture(s): 34
Movie(s): 1
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| Posted: 5/28/07, 12:23 PM Post subject: |
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| Anybody knows anything about the "Pure Neon Laser"? |
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twisted transistor
Wicked Lasers God
Joined: 07 Jan 2006
Posts: 1303
Picture(s): 272
Movie(s): 43
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| Posted: 5/28/07, 7:04 PM Post subject: |
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can i have a link to a HeNe?
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 nice, I highly recommend these. |
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Laser Ben
Wicked Lasers God
Joined: 26 Dec 2006
Posts: 1689
Picture(s): 376
Movie(s): 8
Location: Cupertino, California, USA
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shikari_rock
Wicked Lasers Master
Joined: 26 Apr 2007
Posts: 979
Picture(s): 34
Movie(s): 1
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| Posted: 5/29/07, 12:49 AM Post subject: |
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That's where I found about them. |
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Shawndoe
Elite Laser
Joined: 09 Dec 2005
Posts: 248
Picture(s): 1
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| Posted: 5/29/07, 2:55 PM Post subject: |
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Ben,
Don't you have a pure Ne pulsed laser? Does it work?
As for building a HeNe, the problem is that they require a High Vacuum, less then 1 Torr, which is difficult to achive without expensive Vacuum equipment, like ion diffusion pumps. If you are at a college or University with a good semiconductor manufacturing class they probably have the equipment, and if you take a class they may let you use it for something else.
Have a good one.
Shawndoe |
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staminanerd
Fusion Laser
Joined: 12 May 2007
Posts: 270
Movie(s): 3
Location: Monte Carlo
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| Posted: 9/09/07, 6:43 AM Post subject: |
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The last site I found where you can get HeNe lasers is "meredith instruments". They look realy cool, but they are so expensive and hard to mount cause you need a power transformer. (you need 8000V to start, than 5000V) .
I found 25mW HeNe or a 2mW yellow (594.1nm) for 295$, maybe i'm gonna try the yellow baby... |
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