Building a DPSS

General Discussion on Laser and related Topics.

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marcin
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Re: Building a DPSS

Beitrag von marcin » Mi 04 Jun, 2003 11:29 am

I was just curious if it would work.
Yesterday I got a 808nm 200mW LD from the company I was in contact with. I connected the LD to 3 1.5 volt batteries (4.5 volt) with 170mA. I saw the IR ligh come out so I understood it was working. I took one of my crystals (the composit) and put it in front of it. There was no 532nm detected. Then I tried with my other crystals, I focused the IR light onto the Nd:YVO4 and I had the KTP very close and an OC. I basically used the DPSS pointer but I exchanged the LD for the new one I got. There was still no 532nm detected. I know that my batteries were old, could that be the problem? Perhaps the company gave me a different IR laser diode than 808nm?? I think I have to do new tests with new batteries, then I will know for sure.. I am open for all commnets..
Marcin
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marcin
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Re: Building a DPSS

Beitrag von marcin » Do 05 Jun, 2003 9:25 am

I got my DPSS working yesterday night!! It was the batteries, they were old and thats why it would not work the night before. I took my composite crystal http://focus27.tripod.com/dpsslaser/cry ... stal1.html
and just placed it next to the diode. After some turning of the crystal I got some green light!! I am waiting for the powersupply from www.lasever.com, then I will do some serious work with a stronger laserdiode <img src="/images/graemlins/smile.gif" alt="" />
Marcin
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marcin
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Re: Building a DPSS

Beitrag von marcin » Di 24 Jun, 2003 11:01 am

THE POWERSUPPLY IS ON ITS WAY!! I should recieve the PS today as I tracked it on TNT´s page. I have a party coming up the 28/6, so my DPSS will look great with some smoke from the smoke mashine, a 15mW HeNe, a 150mW Argon and Guidos system which I tried out yesterday. My room looked like it came from The Twilight Zone <img src="/images/graemlins/wink.gif" alt="" /> Will take some pictures of the party.
Martin
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marcin
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Re: Building a DPSS

Beitrag von marcin » Di 01 Jul, 2003 10:18 am

The party went great! The people really like the show, and pictures were all out of focus becouse of the smoke from the smokemachine. But I will work on that and send some pictures anyways.. A question, when I run my homemade DPSS through a composit crystal (have not tried yet ro tun it yet the normal way with to separate crystals) I get a strange shpe dot on the ceeling. All I do is run the 808nm LD through collimating optics straight on the composit crystal. I dont have anything after that. No optics! I get a dot on the ceeling that looks really strange, does anybody know why???
Here is a picture.
http://focus27.tripod.com/dpssdot.jpg

Marcin
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marcin
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Re: Building a DPSS

Beitrag von marcin » Di 01 Jul, 2003 10:21 am

You have to copy and paste the adress otherwise it does not work for some reason.

http://focus27.tripod.com/dpssdot.jpg

Marcin
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marcin
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Re: Building a DPSS

Beitrag von marcin » Fr 04 Jul, 2003 2:45 pm

My very first working DPSSL!! It looks like some creation by Frankenstein but it works and I am working on improving the construction! I will use it for a show tomorrow, does anybody know what max current I can use for a 200mW 808nm LD?? Check these pictures out!
http://focus27.tripod.com/dpsslaser/index.html
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Hatschi
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Re: Building a DPSS

Beitrag von Hatschi » Sa 05 Jul, 2003 9:45 am

Halli Hallo

Hello Mr. Frankenstein!
Here you can compare the specifications from some LD´s. But it will be better to ask the company from whre you got the LD!
Maybe your LD produce 200mW with 400mA, maybe with 300mA?!?

Hatschi

groover
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Registriert: Mo 07 Jul, 2003 9:01 am

Re: Building a DPSS

Beitrag von groover » Mo 07 Jul, 2003 9:07 am

You are from Stockholm? Do you know of any good swedish company that works with lasers? I've looked for some but only find crappy laser pointers and such.

I myself are from sweden. =)

marcin
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Re: Building a DPSS

Beitrag von marcin » Mo 07 Jul, 2003 12:33 pm

---Guido: Hi there <img src="/images/graemlins/smile.gif" alt="" />, Thanx for the info. I checked the specifications for a 250mW 808nm. They did not have a 200mW. The numbers are very correct. The threshold it say is about 160mA to 200mA. If you look at my pictures I got my first lease at 171mA. And actually even sooner but you could not detect it with the camera very well. A friend of mine had a party this weekend and I brought my Popelscan with me and my DPSS,HeNe and argon lasers. WHAT A SHOW!!!! I think a few people took some pictures but most of the pictures were taken with a flash! So you could not see anything. I think a friend of mine knew to shut the flash of so there coud be some pictures I could show you all. We were all partying to 05:00 in the morning. Next project is to build a nice casing for the laser, improving the quality of the beam spot, and increasing power. Unfotrunately my adventure with the DPSS lasers ends here today, at leaset until January 2004. I will explain the reason better in a new post very soon.

---Groover: Here are some places you can call, say hi from me.
www.laseroptronix.se talk to Allan
www.latronix.com Talk to Johnny
Where do you live? In sweden?

Marcin
nasal snuff forum
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groover
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Registriert: Mo 07 Jul, 2003 9:01 am

Re: Building a DPSS

Beitrag von groover » Mo 07 Jul, 2003 12:41 pm

Where do you live? In sweden?

Marcin

A small town just north of Helsingborg.

marcin
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Re: Building a DPSS

Beitrag von marcin » Mo 14 Jul, 2003 11:00 am

Hi everyone,

As I wrote in my last post about ending my journey into the DPSS world I want to explain the reason. I have a business on the side of my original work that will eventually give me time an financial freedom to do the things I love doing, LASERS!! However it will take me some time to reach to that point and a lot of work. I figure I have to give up a litle now, to have alot more later. So I have put all my lasers and scanners and parts on the shelf, and I wont touch them untill I reach my goal. This is my last post until then. Hatschi, thanks for all the help you gave me, and all the posts you have answered. I hope you are still here when I get back. I have had a great time here! se you all in a near future.
Marcin
nasal snuff forum
www.snuffology.com

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