Ruby laser rods, Nd:glass rod, laser pump lamps on Ebay...

Hello!

I have for sell some laser lamps from 120J to 2000K per pulse, RUBY crystal laser rod 8x161mm in box with COA, Nd:Glass rod 10x260mm, Pyrex glass laser cavity and more...

All items are new, all are selling via Ebay, priced from USD9.90!

You could see all my items in my Ebay profile page:
eBay Seller: kreitzz: Business Industrial items on eBay.com

Some photos: Ruby laser rods, Nd:glass rod, laser pump lamps on Ebay...

Hi!

I have added below some photos of my items.
Big Nd:glass rod is already sold, now Ruby rod is ending.
Don't let a chance to get a bargain! :drool:
Click on a link:
eBay Seller: kreitzz: Business Industrial items on eBay.com

definitely beautiful! if someone wants to measure his laseroutput in gilettes, in the near future.. this would be the ticket!
did you by chance experiment with the rubys and blu-ray? they are said to be nicely excited by 405nm, only not done (in large numbers) yet because there was no good source for 405nm..

manuel

No, I have not tried to pump this rod...
It looks like new, so I decided simply to sell it.
I think, it will require a big power on 405nm to do it. May be 50-100W line of 405nm laser diodes...

Thanks to all, all laser rods and one pyrex bloc are sold!
No on sale - two laser lamsp and Mirror pyrex bloc 40x60mm.
IFP-2000 BIG Flash Xenon Laser Pump lamp for ND:YAG!!! - eBay (item 270469972344 end time Oct-21-09 01:16:31 PDT)

INP-7/80A Flash Xenon Laser Pump lamp for SSL ND:YAG - eBay (item 270469972429 end time Oct-21-09 01:17:06 PDT)

Pyrex Cylindrical Mirror cavity for SSL ND:YAG Ruby - eBay (item 270469991269 end time Oct-21-09 02:29:01 PDT)

wait hold on... is this statement correct?

I think, it will require a big power on 405nm to do it. May be 50-100W line of 405nm laser diodes...

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100W of 405?? thats very high power... it think you mean 100mw.. BTW excuse the ignorance, but what does this actually output?.. I know its sold, but just curious..

I am almost sure, that we require a LOT of energy to pump 8x116mm active area of Ruby rod. Let's look on tests data - it required to pump 1000J of flash lamp pulse to receive only 3.5J lasing output! Ruby has very high lasing threshold, so I am sure, that 100mw diode will not pump it over the threshold. Yes, if we are using laser diodes, emitting in maxumum absorption of laser rod, we could use low pump energies, like in DPSS Nd:YAG green lasers.
But Ruby is quite another material!

ohh ok I see.. I thought it was a error.. my bad

So what does this pump out? input of 405nm.... output??

If you want a really cool ruby laser, find a Hughes Laser Range Finder from a tank, they can make several KW pulses, and they're usually not too expensive, around $300 or so, for the last I saw, and that was from Laser_Ben. Sorry for the threadjack, kreitzz.

bobhaha said:

ohh ok I see.. I thought it was a error.. my bad

So what does this pump out? input of 405nm.... output??

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Output for Ruby laser is 694nm...

Krutz said:

did you by chance experiment with the rubys and blu-ray? they are said to be nicely excited by 405nm, only not done (in large numbers) yet because there was no good source for 405nm..

Click to expand...

I have a ruby rod and it does indeed look great with a 405nm laser to excite it.

The fluorescence is deep red. I believe that is what they call "pigeon blood" when it is the natural color of the rock, but gemstones aren't my thing, so I could be wrong.

Actually causing it to lase will require suitable mirrors and a fair amount of bluray, greenie or argon power to pump it with, unless you are going to use a flashlamp. Most likely, you would have an easier time getting the 694nm lasing action going with one of the ruby half ball lenses from Edmund or Thorlabs if you were going to use bluray diodes to pump one with, since those have lower dopant concentration and are small. Rods will require more pump power. Note that you can also use a greenie or an argon laser to pump ruby.

Making a ruby laser is on my todo list, it being a classic and all.

Now, if only I could find a doubler crystal to take it from 694nm down to 347nm and it would move up to a much higher slot on that todo list.

kreitzz said:

I am almost sure, that we require a LOT of energy to pump 8x116mm active area of Ruby rod. Let's look on tests data - it required to pump 1000J of flash lamp pulse to receive only 3.5J lasing output! Ruby has very high lasing threshold, so I am sure, that 100mw diode will not pump it over the threshold. Yes, if we are using laser diodes, emitting in maxumum absorption of laser rod, we could use low pump energies, like in DPSS Nd:YAG green lasers.
But Ruby is quite another material!

Click to expand...

405nm is in the maximum absorption range of a ruby rod, that's not the problem.

The problem is that ruby absorbs the same wavelength it emits, so whatever parts of the ruby are not being pumped hard enough will be removing power from the beam. To top it off, most ruby rods have high doping levels, so you need to pump it very hard when compared to Nd:YAG lasers.

1000J in for 3.5J out probably means it was pumped with close to 1MW for 1ms, which only flashlamps can provide. However, most of the energy from the flashlamp is lost, so you can probably get away with a few KW of bluray for the same output. Of course, 3.5J output is a lot, so the 50-100W guess may very well be in the ballpark for a sensible output power. My guesstimate was that one would need 15-60W to get any reasonable output from it. The most rational option is to focus the pump beam tightly, so that a much smaller part of the crystal is being used, since the energy density determines how quickly you pass the lasing threshold.

Of course, this is why I recommend people play with ruby half ball lenses instead if they want to use bluray diodes for pumping: the power requirements are much smaller with a tiny piece of ruby that is lightly doped. If one has access to lapidary equipment, one can always use a diamond blade to cut a rod into thin slices and polish them, but most of us do not. The tedium of polishing the surface by hand is probably a show stopper for most, hence stock ruby half ball lenses that cost a mint.

Great rod for flashlamp pumping, though, or for anyone that has the equipment and finances to diode pump the whole rod as well as it deserves. A large mirror coated cylinder with lots of 3.7mmØ holes drilled in it to accomodate the cans of countless 6x diodes will certainly do a better job, but is also a whole lot of work and an insane amount of money if one doesn't actually need that kind of power.

To say nothing of what the missus might think of a decoratively glowing ruby rod over a bulky laser that does "nothing."

thats great info here, guys!
seems like i'm a bit spoiled with 808nm pumping, with so much lower treshold and such high efficiencies..
really like to see a tiny (self-polished) ruby slice to pump with a single 405nm diode. wait, what was it with ruby and mohs' hardness? *grins*

manuel

I NEED A RUBY ROD! I have been looking for a ruby laser rod forever and i cant find ANYONE who sells them!!!!! Do you have ANY in stock? How much would you sell them for if you still had them?

Aaron said:

I NEED A RUBY ROD! I have been looking for a ruby laser rod forever and i cant find ANYONE who sells them!!!!! Do you have ANY in stock? How much would you sell them for if you still had them?

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Hi!
I have sold one very nice ruby rod in past for around USD200. If you are interested, I could ask my supplier to find one more...What size do you need?
Regards, Vladimir.

kreitzz said:

Hi!
I have sold one very nice ruby rod in past for around USD200. If you are interested, I could ask my supplier to find one more...What size do you need?
Regards, Vladimir.

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Thanks, but I dont think I need them anymore because I just got my YAG rod. I'll bookmark this page if I ever need one though :thanks: