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Old 01-14-2011, 07:49 AM #1
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Default Nice yellow beam

This is a nice looking yellow beam, but probably a bit spendy ...............



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Old 01-14-2011, 07:58 AM #2
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Default Re: Nice yellow beam

Very nice 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
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Old 01-14-2011, 08:09 AM #3
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Default Re: Nice yellow beam

Here's a link to the product. Enjoy ...................

Toptica: SodiumStar
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Old 01-14-2011, 08:57 AM #4
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Default Re: Nice yellow beam

Looks like one of the guys out of Daft Punk
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Old 01-14-2011, 09:38 AM #5
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Default Re: Nice yellow beam

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).
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Old 01-14-2011, 10:36 AM #6
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Default Re: Nice yellow beam

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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Old 01-14-2011, 11:08 AM #7
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Default Re: Nice yellow beam

20W of 589nm.. I can see a light at the end of the tunnel
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Old 01-14-2011, 11:18 AM #8
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Default Re: Nice yellow beam

You will see light coming through the bottom of long deserted ruin you once called your wallet, too.

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Old 01-14-2011, 12:13 PM #9
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Default Re: Nice yellow beam

Isn't 589 easier to produce than 593.5?
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Old 01-14-2011, 12:21 PM #10
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Default Re: Nice yellow beam

DISREGARD THAT, I SUCK AT LASERS.

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Old 01-14-2011, 12:24 PM #11
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Default Re: Nice yellow beam

Quote:
Originally Posted by twhite828 View Post
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
Perhaps I missed it, but,
What's the 589nm laser's math used?
Wavelenght of diode, typoe of crystals, coatings?
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Old 01-14-2011, 01:12 PM #12
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Default Re: Nice yellow beam

Quote:
Originally Posted by Eudaimonium View Post
Perhaps I missed it, but,
What's the 589nm laser's math used?
Wavelenght of diode, typoe of crystals, coatings?
I'm wrong.

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)?

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Old 01-14-2011, 03:20 PM #13
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Default Re: Nice yellow beam

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?
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Old 01-14-2011, 03:24 PM #14
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Default Re: Nice yellow beam

Quote:
Originally Posted by Cyparagon View Post
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.
<<<<<<< runs screaming into the night

Peace,
dave
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Old 01-14-2011, 04:57 PM #15
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Default Re: Nice yellow beam

Quote:
# More than 20 W output power
# Wavelength 589 nm (Sodium resonance)
Quote:
Originally Posted by DJNY View Post
20W of 589nm.. I can see a light at the end of the tunnel
OOH SHI-

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Old 01-14-2011, 05:28 PM #16
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Default Re: Nice yellow beam

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
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23:10 <Trevor> that is a distressingly low standard for success
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