Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

Buy Site Supporter Role (remove some ads) | LPF Donations

Links below open in new window

FrozenGate by Avery

Nice yellow beam

millirad

millirad

0
Joined
Apr 28, 2009
Messages
2,416
Points
63
This is a nice looking yellow beam, but probably a bit spendy :) ...............

6bcfa4acae.jpg
 





Very nice :drool: I want one, well I am working/collecting parts for a RGB :D
What is that it looks like a dpss yellow laser rather than a mixed beam, cool ;)
 
Last edited:
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).
 
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.
 
Last edited:
20W of 589nm.. I can see a light at the end of the tunnel :drool:
 
You will see light coming through the bottom of long deserted ruin you once called your wallet, too.

:na:
 
DISREGARD THAT, I SUCK AT LASERS.

-Trevor
 
Last edited:
twhite828 said:
Yeah - 589nm is frequency doubled, whereas 593.5nm is made from the combination of 1064nm and 1342nm photons and takes way more painstaking alignment.

-Trevor
Click to expand...
Perhaps I missed it, but,
What's the 589nm laser's math used?
Wavelenght of diode, typoe of crystals, coatings?
 
Eudaimonium said:
Perhaps I missed it, but,
What's the 589nm laser's math used?
Wavelenght of diode, typoe of crystals, coatings?
Click to expand...

I'm wrong. :p

I played with my SFG calculator for a bit and found that:

Code: 
1064nm + 1342nm = 593.4697nm

And, more importantly:

Code: 
1064nm + 1319nm = 588.9282nm

I 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
 
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?
 
Last edited:
Cyparagon said:
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.
Click to expand...

<<<<<<< runs screaming into the night

Peace,
dave
 
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
 
You must log in or register to reply here.





Back
Top