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Feihc117
25mW Classic Wicked Laser
Joined: 16 Jun 2007
Posts: 53
Location: Chicago
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 Posted: 6/16/07, 9:52 PM Post subject: |
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| The laser in my lab is green at 5W. Its only used to pump a TI:Sapphire laser at 800mW though. |
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Overmind
Elite Laser
Joined: 24 Jun 2007
Posts: 140
Location: Classified
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| Posted: 7/14/07, 9:52 AM Post subject: |
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| Something like that 10W would help advance my research with years...but unfortunately I can't afford it. |
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krutsch16
Modified 10mW Greenie
Joined: 21 Aug 2006
Posts: 11
Location: Ohio
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| Posted: 8/14/07, 10:44 PM Post subject: |
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| I have 2 5W 808nm lasers at work used for power over fiber. They are making progress in leaps and bounds in this area. The laser are coupled to a fiber optics cable on one end, and on the other a photovoltaic cell converts the light back into electricity. JDSU holds the patent on the technology currently and use it to power sensors in oil wells and other places you wouldn't want electricity. I just want to put some collimating lenses on the ends of the fibers and see how they stack up against of of the WL products. |
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Laser Ben
Wicked Lasers God
Joined: 26 Dec 2006
Posts: 1689
Picture(s): 376
Movie(s): 8
Location: Cupertino, California, USA
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| Posted: 8/19/07, 9:42 PM Post subject: |
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5W 808nm fiber coupled diodes can be bought for about $200 on ebay with a power supply. They are very cheap and very common.
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rafael
25mW Classic Wicked Laser
Joined: 23 Aug 2007
Posts: 29
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| Posted: 8/23/07, 7:47 PM Post subject: |
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My college has several high powered lasers which are lab quality.
I do not know what exactly they are seeing as i don't take any of the courses, but i am sure i can as a friend to get the details on them including the price to figure out how much it was costing....
But generally unless you got some major funding, you are not getting anything sweet to play with like that.
Now what i want to know, is what is the most power a laser can emit while still being portable.( good sized) |
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fnugget
Elite Laser
Joined: 21 Jul 2005
Posts: 131
Picture(s): 2
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| Posted: 9/09/07, 4:34 PM Post subject: holy |
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| WOW, I didn't realize it...Yes! Supercaps can do it, but I think SWNT (Single Wall carbon Nano Tubes) might be able to store a lot of charge eventually too. Think of a lead battery with those big plates for surface area, then compare it to the surface area of a nanotube. Yeah, lots of density. |
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Event_Horizon
25mW Classic Wicked Laser
Joined: 12 Nov 2007
Posts: 33
Location: Niagara Falls, ON, Canada
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| Posted: 11/19/07, 5:59 PM Post subject: |
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The most powerful laser we have at Niagara College is a 200 Watt CO2 laser pumped by a RF generator. We are using it to research new plant-cutting techniques.
We also have a monster water-cooled laser of some kind, i forget what the lasing medium is (but its a green beam). It runs at 300,000 Volts on about 600 amps of current.... and its only a 20 Watt beam. We had to have a special water cooling system installed into the building because the city couldn't provide the 50 gallons a minute it needs to stay cool. 
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likewhat
55mW Advanced Wicked Laser
Joined: 10 Jun 2007
Posts: 62
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| Posted: 11/19/07, 7:00 PM Post subject: |
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| Event_Horizon wrote: |
The most powerful laser we have at Niagara College is a 200 Watt CO2 laser pumped by a RF generator. We are using it to research new plant-cutting techniques.
We also have a monster water-cooled laser of some kind, i forget what the lasing medium is (but its a green beam). It runs at 300,000 Volts on about 600 amps of current.... and its only a 20 Watt beam. We had to have a special water cooling system installed into the building because the city couldn't provide the 50 gallons a minute it needs to stay cool. |
So your laser power supply uses 180 MegaWatts continuously in order to supply 20 watts of laser output. Congratulations you have the least efficient laser on the planet. But seriously though. There is no way you laser runs on 600 amps at 300 kV, you would literally need your own power plant to run that.
I am pretty sure that your city has orders of magnitude more water supplied to the building than your laser needs. Most people use closed cooling systems to keep the laser clean and temperature regulated. |
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Event_Horizon
25mW Classic Wicked Laser
Joined: 12 Nov 2007
Posts: 33
Location: Niagara Falls, ON, Canada
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| Posted: 11/19/07, 9:28 PM Post subject: |
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I don't rememeber the exact values of the power input, I guess my estimate was off. It is a massively ineffecient laser, hence the 50 gpm water usage, which i know to be correct. The laser is like 25 years old, and we needed a special cooling system installed because the towns water supply was unable to provide the flow rate needed, as the town is known in the region for being a joke of a town. I was told they they needed to get a special permit to tap into the fire hydrant system or something, but I am unsure of the accuracy of that.
The water goes into the laser at roughly room temperature, and comes out at almost 60 degrees C.
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Jonazzaz
Guest
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| Posted: 12/13/07, 2:41 AM Post subject: |
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| LaserDragon wrote: |
| What defines a lab laser? What makes different from any other laser? |
Their not handheld  |
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fnugget
Elite Laser
Joined: 21 Jul 2005
Posts: 131
Picture(s): 2
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| Posted: 12/13/07, 7:06 PM Post subject: and |
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| Jonazzaz wrote: |
| LaserDragon wrote: |
| What defines a lab laser? What makes different from any other laser? |
Their not handheld |
And they are usually precisely cooled, maybe have tunable pulse settings, tunable power output, 100% duty cycle, and power output won't vary over time. |
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