millirad
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This is a nice looking yellow beam, but probably a bit spendy 
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ArcticMyst Security by Avery
Nice yellow beam
- Thread starter millirad
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Very nice :drool: I want one, well I am working/collecting parts for a RGB
What is that it looks like a dpss yellow laser rather than a mixed beam, cool
What is that it looks like a dpss yellow laser rather than a mixed beam, cool
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millirad
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ped
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Looks like one of the guys out of Daft Punk
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Nice picture but I'd call fake on this one.
If the beam would be of THAT visibility, the room would be illuminated by yellow light from the dot on the wall of whereever is that laser hitting.
Also, beam reflects off some mirror there, but where is it going? It would appear it's taking 90° turn parralel to optical table, but somehow it's like going into the air, away from the table.
Besides, beam before and after what appears to be final collimater is greatly different in tone of orange, it's more yellowish before it and more reddish after it (on the edges at least).
If the beam would be of THAT visibility, the room would be illuminated by yellow light from the dot on the wall of whereever is that laser hitting.
Also, beam reflects off some mirror there, but where is it going? It would appear it's taking 90° turn parralel to optical table, but somehow it's like going into the air, away from the table.
Besides, beam before and after what appears to be final collimater is greatly different in tone of orange, it's more yellowish before it and more reddish after it (on the edges at least).
millirad
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They might have photo-shopped it to enhance contrast. I wouldn't be surprised to find that they enhanced it to increase interest in the product.
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DJNY
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20W of 589nm.. I can see a light at the end of the tunnel :drool:
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You will see light coming through the bottom of long deserted ruin you once called your wallet, too.
:na:
:na:
Meatball
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Isn't 589 easier to produce than 593.5?
Trevor
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DISREGARD THAT, I SUCK AT LASERS.
-Trevor
-Trevor
Last edited:
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Perhaps I missed it, but,
What's the 589nm laser's math used?
Wavelenght of diode, typoe of crystals, coatings?
Trevor
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I'm wrong.
I played with my SFG calculator for a bit and found that:
Code:
1064nm + 1342nm = 593.4697nmAnd, more importantly:
Code:
1064nm + 1319nm = 588.9282nmI believe it's SFG with those wavelengths. If that's the case, I'd guess reason 589nm is "easier" to make is that 1319nm is easier to produce in Nd:* alongside 1064nm than 1342nm. Thus, more photons at 1319nm would be available to combine with 1064nm (yielding 589nm) than would be available at 1342nm (yielding 593.5nm)?
-Trevor
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And for those that don't understand how the sum of two large numbers is a small number, an easy way to calculate sum-frequency generation is similar to calculating resistance in parallel
1/resultant = 1/constituant1 + 1/constituant2
or
resultant = 1/(1/constituant1 + 1/constituant2)
It works with 532 as well, since both components are 1064,
1/(1/1064 + 1/1064)
= 1/(2/1064)
= 1/(1/532)
= 532.
edit: incidentally, what the hell is a ramen noodle amplifier?
1/resultant = 1/constituant1 + 1/constituant2
or
resultant = 1/(1/constituant1 + 1/constituant2)
It works with 532 as well, since both components are 1064,
1/(1/1064 + 1/1064)
= 1/(2/1064)
= 1/(1/532)
= 532.
edit: incidentally, what the hell is a ramen noodle amplifier?
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daguin
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3zuli
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Last edited:
Trevor
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This kind of power has been around a while, being used as a guide star in adaptive optics systems. It'll stay expensive for a long time.
-Trevor
-Trevor
