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Old 01-03-2012, 05:38 AM   #1
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Default my dye laser project [ pic heavy ]

A few weeks ago, I decided to buy one of those 40W co2 tubes that are so popular around here.

I quickly changed my mind and bought a dye laser instead. (Good thing my offer on a co2 tube got declined)

Last Saturday, I got a package in the mail.



This 54lb beast of a package was my dye head and circulator.



Unfortunately, the dye circulator was covered in toxic laser dye (not a fun cleanup job).





The Laser

The dye laser I'm using is a coherent 599.



I wouldn't have guessed that my first variable Wavelength laser would be class IV
(you need a substantial pump source to obtain an output of >500mW)



Here is the dye head with the cover off, I am shining my 90mW green through it. (no dye)



The birefringent filter, the magic optic that allows the output to be tuned.



A size comparison with my argon.

The Dye

The dye I will be using is Rhodamine 6g



The dye allows for a tuning range from yellow (maybe green?) to red.



I am still in the process of gathering all the materials.
I will update this thread as my project progresses and will hopefully get some high power tunable yellow beamshots soon.
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Last edited by TheTeslaWarrior; 01-03-2012 at 05:48 AM.
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Old 01-03-2012, 05:59 AM   #2
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Default Re: my dye laser project [ pic heavy ]

Is this a unit with a high speed dye jet? Or is it a pulsed operation?

Hence... Class IV

I can't wait to see it fired up!
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Old 01-03-2012, 06:07 AM   #3
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Default Re: my dye laser project [ pic heavy ]

Quote:
Originally Posted by Meatball View Post
Is this a unit with a high speed dye jet? Or is it a pulsed operation?

Hence... Class IV

I can't wait to see it fired up!
High speed dye jet, it has been tested up to 32W pump power (8.5W output at 600nm iirc)
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Last edited by TheTeslaWarrior; 01-03-2012 at 06:11 AM.
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Old 01-03-2012, 06:26 AM   #4
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Default Re: my dye laser project [ pic heavy ]

What is the pump source?

With a 32W input could you also get multi-watt output it the yellow range?
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Old 01-03-2012, 07:01 AM   #5
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Default Re: my dye laser project [ pic heavy ]

Quote:
Originally Posted by benmwv View Post
What is the pump source?

With a 32W input could you also get multi-watt output it the yellow range?
give me a 32W argon and i'll let you know
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Old 01-03-2012, 07:24 AM   #6
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Default Re: my dye laser project [ pic heavy ]

Can't wait for video! Seriously, this thing sounds awesome. (Aside from the dye cleanup)
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Old 01-03-2012, 07:53 AM   #7
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Default Re: my dye laser project [ pic heavy ]

That's just insane! Can't wait to see some beam shots.
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Old 01-03-2012, 09:53 AM   #8
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Default Re: my dye laser project [ pic heavy ]

Pretty sure that was glycol you were seeing not dye, hopefully food grade.
Its used as anti freeze etc. same as anti freeze without the oil for the water pump.
Make sure you dont run it empty , it may have some bearing on the cooling.
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Old 01-03-2012, 10:24 AM   #9
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Default Re: my dye laser project [ pic heavy ]

Highpower yellow laser mmm.....
I WANT IT
Can't wait for some beamshots !

Jim
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Old 01-03-2012, 03:07 PM   #10
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Default Re: my dye laser project [ pic heavy ]

How will you pump it? What was the cost?
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Old 01-04-2012, 02:12 AM   #11
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Default Re: my dye laser project [ pic heavy ]

Quote:
Originally Posted by Somedude View Post
Pretty sure that was glycol you were seeing not dye, hopefully food grade.
Its used as anti freeze etc. same as anti freeze without the oil for the water pump.
Make sure you dont run it empty , it may have some bearing on the cooling.
You are partially right, what you are seeing is ethylene glycol (reagent grade)
However, it is also mixed with dye dissolved in reagent grade methanol.

Quote:
Originally Posted by eexe View Post
How will you pump it? What was the cost?
I'll be using a dpss pump source.

As for the price, I'll wait until i'm done spending money before I post the price.
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Old 01-04-2012, 02:33 AM   #12
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Default Re: my dye laser project [ pic heavy ]

So the pump wavelength needs to be around 480nm?

I wonder if you could get away with a 445nm diode?
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Old 01-04-2012, 02:51 AM   #13
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Default Re: my dye laser project [ pic heavy ]

^ if you could I think you'd need an array of them.
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Old 01-04-2012, 03:06 AM   #14
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Default Re: my dye laser project [ pic heavy ]

Quote:
Originally Posted by benmwv View Post
So the pump wavelength needs to be around 480nm?

I wonder if you could get away with a 445nm diode?
The peak absorption wavelength for Rhodamine 6g is around 530nm.

The 514nm line is the one that does all the work, 445nm goes straight through.



I split the lines of my argon to show how each line is absorbed. (514nm at the top, 454nm at the bottom)

The pump beam also needs to be focused down to a very small point, something those 445nm diodes just can't do.
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Old 01-04-2012, 03:41 AM   #15
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Default Re: my dye laser project [ pic heavy ]

Ahh, so you are going to use 532nm dpss.

I googled Rhodamine 6g and I seen specral graphs when excited with 480nm light, so I assumed that you meant the 488 argon line and 473 dpss.
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Old 01-04-2012, 08:05 PM   #16
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Default Re: my dye laser project [ pic heavy ]

Cool!
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