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

20W's of 532nm, wow!

would rather have a range of low power dpss modules in all the wavelengths , high power stuff gets old kinda fast .
 





When I point my laser to the ground and discover that I have burned down a pagoda in China, then I will reconsider the possibility that too much power exists, but until then it's simply a phrase without meaning to me. Such as too pretty of a unicorn, I have not seen it, and don't think it exists at present. :D
 
Last edited:
I agree that high power gets boring fast but that's when analog comes in! I never thought I'd have a use for it but being able to run a 2.5W DPSSL to powers comparable to what you'd find in pointers is kinda cool :D

-Alex
 
It sure is a lot of money. That's like me going out and getting a new BMW.
 
I guess these things are more geared toward the market that has a veyron in the garage already but still need a decent flashlight :D
 
yeah, i'm with dash on this. I dislike owning lasers that are too powerful. more than a watt or two makes it a dangerous fire hazard and it can get out of hand fast if you're not careful, and its too bright to look at, so, while novel, is quite a pain to deal with. I have a few lasers in the 3W range, and at that point it gets pretty insane unless you have a beamdump or something. It burns everything I put in front of it pretty much...
 
Alaskan said:
Which would you like more, 1W of yellow, or 20W of green DPSS?
Click to expand...


Encap said:
For a little more than the $31.2k cost of a 20W 532nm, without any doubt I would rather have a CNI 1W, 589.159nm +/-0.001nm Laser Guide Star system.

How much more impressive than a bright 532nm beam or dot, overall, would it be to create a sodium beacon type guide star by energizing a layer of sodium atoms that is naturally present in the mesosphere at an altitude of around 90 kilometers? Energizing sodium atoms that then re-emit the laser light, producing a glowing artificial star. Unbelievable, awesome, amazing, and way beyond cool-- right?

Creation of an artifical star in the sky at 90,000 meters altitude with a yellow laser. Now THAT is what I call, pointing out a star in the sky!

I received a quote back in 2015 for a CNI Laser Guide Star (LGS) system HPL-589.159-Q/0.2~1.2mJ/1~6W LD PUMPED ALL-SOLID-STATE AOM Q-SWITCHED LASER with HPL-PSU and water chiller for cooling laser---complete system --price was not as high as I thought it might be.

The price of the lowest cost version, bottom of the range, including delivery within USA for 1 piece, CNI, HPL-589.159-Q/0.2~1.2mJ/1W with PSU and water chiller, 589nm +/- 0.001nm, < 10% stability, was $44,000.00.
Click to expand...


Tough question, but I think I'll have to side with Encap on this; 1W of 589nm for the win! :wave:
Who else would have their own personal Guide Star laser? Group Buy anyone? :crackup:
 
1W of 589 wins with me too. There will be no doubting the brilliance of that 589 beam. :)
Also 1W of 589 is cheaper.
 
Last edited:
BowtieGuy said:
Tough question, but I think I'll have to side with Encap on this; 1W of 589nm for the win! :wave:
Who else would have their own personal Guide Star laser? Group Buy anyone? :crackup:
Click to expand...

Interestingly, the CNI LGS system while expensive, it is not too expensive--is a very affordable system for University and College Observatories and other peopel and places that have a need or desire to have one. It is not hundreds of thousands of dollars or millions of dollars, it is just and affordable by comparison-- tens of thousands of dollars is very different from the tens of millions of dollars Lawrence Livermore National Laboratory spent creating the first 589nm Yellow Guide Star SYstem

THe first Yellow Laser Guide Star system was developed by Lawrence Livermore National Laboratory and and put into use in 1997--it was an offshoot of industrial plant sized ALVIS systems for separating isotopes.

"Atomic vapor laser isotope separation (AVLIS) is a method by which specially tuned lasers are used to separate isotopes of uranium using selective ionization of hyperfine transitions. In the largest technology transfer in U.S. government history, in 1994 the AVLIS process was transferred to the United States Enrichment Corporation for commercialization. However, on June 9, 1999 after a $100 million investment, USEC cancelled its AVLIS program." from: https://en.wikipedia.org/wiki/Atomic...ope_separation

"The original/first laser guide star used technology originally developed for the LIS (Laser Isotope Separation) USA national effort. The guide star begins with green light from flashlamp-pumped, solid-state lasers beneath the main floor of the telescope dome. The light travels through fiber-optic lines to a compact dye laser similar to that used in uranium enrichment. The dye laser converts the light from green to yellow, and a beam projector mounted on the telescope directs the yellow light up through the upper atmosphere.
At an altitude of about 90-95 kilometers, the laser beam hits the layer of sodium atoms that are continuously produced by burning micrometeorites. The light excites the sodium atoms, causing them to emit yellow light in all directions and create a sharply defined guide star." From: https://str.llnl.gov/str/Hargrove.html and here: https://str.llnl.gov/str/Guidestr.html

The original Laser Guide Star involved technology from a $100 million US goverment effort and was operational in 1997 ---fast forward to today, 20 years later. For $44,000.00 anyone or organization can purchase a Laser Guide Star(LGS)System from CNI that uses 808nm IR laser diodes to pump a crystal and optics system to create a DPSS 589,159nm +/- .001nm Laser Guide Star System.
In perspective, for about the price of a 2017 Mini Cooper, John Cooper Works Countryman ALL4, anyone can have their own personal Laser Guide Star System---that is as incredible as it is hard to fathom/believe .
 
Last edited:
You must log in or register to reply here.


Back
Top