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Old 03-28-2017, 02:31 PM #65
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

Good job Laserbuilder. Very impressive. +rep


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Old 03-30-2017, 02:41 AM #66
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

Well...this has been a decent read. It's a been a while since anyone's tackled a CVL, or even an MVL of any kind for that matter.

Kudos, and well done. I cannot wait to finally move and have the space to get my hands dirty again..
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Old 04-02-2017, 03:55 AM #67
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

You mention that you are missing some yellow, however as far as I can recall, the yellow is only created at higher temperatures and there is normally less yellow than green. I was going to try to build a copper vapor laser, but I chickened out at the cost of a hydrogen thyratron... Congrats on having such a fine work of art!
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Old 05-06-2017, 06:04 PM #68
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

That my friend is a highly impressive yet overwhelming laser, I love the 5-watt 510nm line. I have wanted to build a copper/bromide laser as a kid, since they are slightly easier to operate and construct. Kudos on your find, I hope it serves you well for many years to come.
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Old 06-01-2017, 02:44 PM #69
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

I had made a new HV transformer for my CVL, it gives 7 kV AC instead of 4.5 from two MOTs. The transformer is fully custom built and submerged into an oil tank. the tank is custom made too. Also there is a copper tube inside the tank for cooling down the oil by passing cold water through the tube. There are loads of photos, so I'll leave a link to my album in the social network.

https://vk.com/album31425290_244754473
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Old 06-01-2017, 04:18 PM #70
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

Quote:
Originally Posted by Laserbuilder View Post
I had made a new HV transformer for my CVL, it gives 7 kV AC instead of 4.5 from two MOTs. The transformer is fully custom built and submerged into an oil tank. the tank is custom made too. Also there is a copper tube inside the tank for cooling down the oil by passing cold water through the tube. There are loads of photos, so I'll leave a link to my album in the social network.

https://vk.com/album31425290_244754473
Awesome, once again!
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Old 06-01-2017, 08:03 PM #71
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

Very interesting once again. Plenty of photos to see the plan taking shape. I noticed in one a large green wire wound resistor that looked burned. I am assuming it is not. Would love to see photos of it working now. Thanks.
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Old 06-02-2017, 09:01 PM #72
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

It is already working and I got some nice lasing yesterday. But I've encountered a problem that with the raise of the voltage I got sparks and arcs in the places where they must not appear, inside the Blumlein generator. Now I'm improving the insulation and adding a snubber circuit for the main thyratron.
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Old 06-04-2017, 06:19 PM #73
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

Today I've squeezed everything out from my CVL tube. With the improved power unit I could push in 2.2-2.3 kW of power and got much more yellow light than in previous experiments. The beam is much more "lemon" in colour, not pure green. I think I have 5 real watts of light here, it burnt wood very well. Here are some photos with different camera settings.
Attached Thumbnails
Homebuilt  3-5W Copper Vapour Laser System-dscn3736.jpg   Homebuilt  3-5W Copper Vapour Laser System-dscn3740.jpg   Homebuilt  3-5W Copper Vapour Laser System-dscn3745.jpg   Homebuilt  3-5W Copper Vapour Laser System-dscn3747.jpg   Homebuilt  3-5W Copper Vapour Laser System-dscn3737.jpg  

Homebuilt  3-5W Copper Vapour Laser System-dscn3738.jpg  
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Old 06-04-2017, 06:37 PM #74
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

Those look great. Nice job, Laserbuilder. I do like that color very much.
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Old 06-08-2017, 10:32 PM #75
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

yeah it's a nice lemon yellow. there's nothing else that's really quite like it.
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Old 08-14-2017, 07:44 PM #76
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

The CVL project is finished! The laser head is complete now!
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Old 08-14-2017, 09:34 PM #77
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

That's amazing, Laserbuilder. I do love that color. You said you think it's about 5 watts. Do you not have a way of measuring the output power? Congratulations on a fine build.
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Old 08-14-2017, 10:02 PM #78
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

That looks nice! Good job!
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Old 08-15-2017, 04:09 AM #79
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

Nice work as always!!

All of your lasers have been outstanding efforts.

Am always amazed at your success in building them with the resources you have at hand

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Old 08-15-2017, 05:24 AM #80
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Default Re: Homebuilt 3-5W Copper Vapour Laser System

Quote:
Originally Posted by paul1598419 View Post
Do you not have a way of measuring the output power? Congratulations on a fine build.
I don't have a proper power meter yet. I have found one, but than it turned that it measures energy in Joules, not power in Watts, so it is for single-pulsed lasers.
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