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Before I had made my "homebuilt CVL system" I had a chance to play with the commercial russian CVL called LGI-101. I had found it in the University laser lab NOS in unpacked factory crates. The lab didn't use it for anything since buying it in 1989. It is a first-generation CVL with only 3W of...

10) ILGI-503 Nitrogen laser. It is the same as LGI-21 by appearance and performance, only some cosmetical restyling of the insides.

Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please Thanks. Alaskan, could you, please, PM or email me? I think I can try to help or at least try to find neccessary information about lenses you need.

Oh, yes, it is very strange. On Sam's laser FAQ It is said that such voltage drop occurs when argon pressure is toooo high. I even don't know wether this head will lase for significant time. Ok, I'll continue to post new photos of my lasers. 9) LGI-21 Nitrogen laser. 3-5 mW of average...

Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please Alaskan, could you tell me what is PCX as a lens material? Is it a sort of glass? Sorry for offtopic.

8) This is my third argon laser -- JDS Uniphase 2213-15VL. I've bought it on e-bay for 40$, it was sold as non-operational and the umbilical cable was cut off. So, I've made a very crude and simple power supply, which consisted of filament transformer, variac, voltage doubler and ballast...

I don't know for sure, but I think it has the same function that a laser in an ordinary laser printer.

7) Quite soon, after getting ALC60X, I had a good luck to get nearly for free the second argon laser -- JDS Uniphase 2213-150MLK. This is probably the most powerful model from the whole 2213 line of JDSU lasers, 150 mW multiline in singlemode beam. I got both the laser head and the PSU which...

You can use the frame of the laser and its optics mounts for any other laser project -- you'll just need to fit another mirrors and another tube between the mirrors or a solid state laser pumping chamber with the laser rod and lamp. You can use the solenoid\magnet as the source of copper wire...

6) This is my first argon ion laser, ALC60X, which is quite common among laser hobbyists. I have bought it on e-bay for only 50$, as it was declared to be non functional. It had only 634 hours on the meter and made its very long way to Ukraine and I managed to make it working. It really has a...

5) Here, next to LG-75, is the newer He-Ne laser LGN-111. It has a cold-cathode coaxial tube glued into the round case. It is rated for 25 mW multimode too and has still its full power, though the laser is 25 years old. Anyway, it has a defect (?). The output beam is splitted into 3 fractions...

Very unfortunately, it is not possible now. He died in 2012, AFAIK. :cryyy::cryyy::cryyy: His book about metal vapour and metal halide lasers is wonderful, I'd like to make a CuBr tube he described in many details when I find a good glassblower.

4) One of the oldest lab He-Ne lasers by design. It is called LG-75. This particular unit was manufactured in mid 80s, but it was introduced in production not later than in 1969. This is a classic design with non-coaxial tube, hot cathode, heavy frame made of "Invar" alloy that forms an optical...

3) LGN-105 small lab He-Ne laser. It is rated for 2 mW power and 632 nm wavelength, on the picture it has an orange laser head and PSU of the same colour. Inside the laser head there is a laser tube of very nice coaxial construction. I use it for laser alignment.

2) Vintage LGN-108 He-Ne laser pointer. Originally it had a special laser head shown in the first picture, but the tube inside was broken. So I replaced it with another more widespread in our country tube, also 1 mW 632.8 nm. The power supply is portable with a carrying strap and has a...

Here I will share photos of the lasers I currently have in my collection. Approximately it contains about 60 laser heads, laser tubes, laser pumping chambers and about 15 laser related equipment like associated to laser heads power supplies, cooling machines, dye circulators etc. Less than a...

Yesterday I powered the laser on again. Its raw beam is visible even when the pictures are taken with the flash.

A small update. Rebuilding of the power unit is in progress and the block with Blumlein generator is finished.

Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please Such big lenses are used in multi-kW industrial lasers for metal cutting. Finding optics with neccesary AR coatins is hard, all optics that was scrapped from our University laser lab didn't have any coatings...

Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please A set of CO2 laser optics is on sale at e-bay. A BIG (1.75" dia) ZnSe lens and a set of total reflecting mirrors. And only for 150$. I think, this is a great bargain. I have already bought a couple of lenses so...