FS: $250 10mW 473nm Single Mode DPSS Laser System

[Laser_Ben]

I have up for sale a large quantity of 10mW 473nm Single Transverse Mode DPSS Laser Systems. These are complete turnkey systems with a DC power supply, mount, IEC plug, and switch included. These are capable of TTL modulation if you are so inclined. You may receive a different serial number then the unit pictured, however it will be in the same physical shape.

Price: $250 + Shipping Paypal only.

Shipping to the USA is $14.70 insured. International cost is for a USPS medium flat rate box.

 

[Laser_Ben]

Re: FS: $200 10mW 473nm Single Mode DPSS Laser System

Interest at $200?

 

[jayrob]

Could you show a picture of the whole package size with power supply and everything as it will sit, ready to plug in and use?

 

[Laser_Ben]

Could you show a picture of the whole package size with power supply and everything as it will sit, ready to plug in and use?

http://farm3.static.flickr.com/2791/4430685557_364e5bcd4c_b.jpg

That is everything, the AC/DC power supply and the diode driver are on opposing sides.

The IEC connector is wired onto it.

 

[jayrob]

Please explain 'single transverse mode' with these units...

Are these supposed to have a nice beam with focused dot like the DPSS lasers we are used to?

Because the one you sent me is not focused properly... The dot at about 5' is about the size of a quarter, or a half dollar...

At 30', it's the size of a softball. There is also a faint line through the dot. (edit: cleaned the IR filter - no more line) So I am guessing that the laser may have been repaired, and the lens was not put in the proper position or something...

There is not a way to focus it from the front. I can see that. And I don't want to take it apart.

Do you have one that is in focus that you can trade me for? One that is also at least 11mW's?

(I can meet you at Fry's in Fremont if you want. (Duram Rd. exit off 680)


Edit: Well I already made it into a project now...

I started testing different optics to see if one would help correct the beam/focus.

I found one that worked pretty good. Not perfect, but pretty good. So I guess I'm happy with it!

Thanks for the offer to trade back via PM!

 

[jayrob]

Hey you want to see something cool with this?

Well... I think it's cool anyway. But some may think it's actually ridiculous. Because it really should be mounted into a enclosure for safety...

But I like that I can see all the circuits and stuff, so I just modified it with a handle and stuff... (just have to be aware of the potential shock hazard is all)

Everything I did to this, is a simple 'blot on' parts fabrication. And can easily be taken off to return the unit back to it's original state.

Where the front of the laser is, you can see an aluminum ring. That is where I mounted the 1/2" diameter optic that I found which corrects the focus.

The faint line that I mentioned above was just a dirty IR filter. After I cleaned it, it has a nice clean dot...

I don't know what optic it is. Just that it is two pieces together. And that it only lessens the output power by about 1/2mW or less...

I have it sandwiched between two o-rings, and held on with three tiny mounting bolts. (easily removable as well)

I removed the 'pickoff' lens at the front, and I have a steady 28mW's after my correction lens! (it was 11mW's before removing the pickoff lens)

I don't know what the correction lens is called. I had a bunch of optics from this kit:
Optotronics Product Details

I can describe it though...

It is about 1/2" in diameter. And you can see that it is a two element lens.

It looks like this:

 

[Laser_Ben]

That looks pretty good! You could probably attach a 7V battery pack and a regulator and run it portable.

 

[jayrob]

Well I do have one of those DC to AC car adapters that you just plug into your cigarette lighter plug...

I'm sure that will easily run it, but you say there is a similar converter that will run off of 7 volts?

Link please!

 

[Laser_Ben]

The laser driver takes 5VDC, likely around 1-2A (need to check). You can easily use a voltage regulator to get that voltage and then use a battery pack.

 

[jayrob]

Oh I see what you mean...

And then by-pass the existing AC/DC regulator...