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Registered Member #1316
Joined: Thu Feb 14 2008, 03:35AM
Location: Cambridge, MA
Posts: 365
I have been trying to make a tea laser for a while now. I can not get the even discharge that is required for lazing. I am using a single projector sheet as the dielectric and a small deionisier as the power supply. Could the power supply be causing my problems? Thanks
Registered Member #1316
Joined: Thu Feb 14 2008, 03:35AM
Location: Cambridge, MA
Posts: 365
Done. Laser is still not working, all I get is about 5 sparks on different parts of the rails. Could the high voltage, low current and low wattage (>5 watts)
Registered Member #99
Joined: Thu Feb 09 2006, 06:10PM
Location: florida, usa
Posts: 637
If your getting sparks across the channel, it could be that your electrodes "edge" isnt smooth. I believe the edge needs to be extremely uniform. The electrodes are usually the hardest part to get right of a TEA N2 laser. I dont think the high voltage section is bad if its arcing... Matt
Registered Member #1667
Joined: Sat Aug 30 2008, 09:57PM
Location:
Posts: 374
The electrodes need to be plain aluminium, non-eloxated. If your Laser doesn't work, this may have several reasons: the discharge edges are not perfectly straight and well-aligned (you know what to do) peak voltage is too low (widen the spark gap) inductance is too high (reduce parasitic inductance loops) ...
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4062
piece of copperclad with groove hacksawed in as a top electrode :) might be worth a try, don't know about long term use though..
just a thought but it might be amusing to build an array of them on a circular piece of board with their own power sources, to generate high peak power at the centre.
EDIT:- doesen't work, the discharge channel needs to be absolutely smooth. i tried NIB magnets end to end but this also failed (probably due to the opposite electrode)
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TEA laser help
Could the high voltage, low current and low wattage (>5 watts) 