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

New CNI wavelength! 552nm DPSS.






so close to 555nm :D
I can't imagine the price tag, and how beautiful it would look
 
Last edited:
steve001 said:
Looky what I found. Is it true? Looking around it seems there was such a laser sold in this form, but no longer is except here maybe. search 552nm laser pointer.
The New Upgrade 552nm Green Laser Pointer Pen Adjustable Focus 532nm Lazer Visible Beam Laser Pointer Astronomy Laser Pointer Buy From Laser666888, $23.12| Dhgate.Com

Laser666888
552nm Laser Pointer from China - 552nm Laser Pointer from Chinese 552nm Laser Pointer Store at Laser666888 | DHgate.com
Click to expand...

Sadly they're just 532nm. Chinese companies often make typos like that, it can be frustrating. :(
 
Cool, but I wonder how 'worth-it' this would be. 561nm is yellow enough to be a really interesting color. Seems like 552nm would be a lot closer to 532nm. Maybe if it was a lot cheaper than 561nm it would be nice.
 
Razako said:
Cool, but I wonder how 'worth-it' this would be. 561nm is yellow enough to be a really interesting color. Seems like 552nm would be a lot closer to 532nm. Maybe if it was a lot cheaper than 561nm it would be nice.
Click to expand...

Possibly. I wonder what 552nm is used for, if anyone knows, do tell! Pretty neat to still see new wavelengths popping up :)

-Alex
 
Hap said:
Possibly. I wonder what 552nm is used for, if anyone knows, do tell! Pretty neat to still see new wavelengths popping up :)

-Alex
Click to expand...

Life sciences.
A google search shows this wavelength is available from other companies.
 
Any idea what it is? My guess would be OPSL or an uncommon Nd doped crystal (doubled of course).
 
H2Oxide said:
Any idea what it is? My guess would be OPSL or an uncommon Nd doped crystal (doubled of course).
Click to expand...

I thought I read somewhere on here that it was a doubled 1104nm diode. Not aware of any Nd lines at 1104nm.
 
Here is how one group did it back in 2012:
"A high-power diode-side-pumped 1,105 nm Nd:GGG laser and a laser at 552 nm based on intracavity frequency doubling of 1,105 nm laser are demonstrated for the first time. A 26.8-W 1,105 nm laser continuous wave output was achieved under the incident pump power of 170 W. A LiB3O5 crystal is used for second harmonic generation of 1,105 nm laser. When the pump power was 170 W, the average output power at 552 nm of 7.3 W was obtained, corresponding to the optical conversion efficiency of 4.3 %. And the minimum pulse width is 181 ns with the pulse repetition rate of 10 kHz. The M2 factors are measured to be 19.8 and 17.6 in the horizontal and vertical directions, respectively."

Article is here: Diode-side-pumped Nd:GGG laser at 1,105 nm and frequency-doubled laser at 552 nm - Springer
 
diachi said:
I thought I read somewhere on here that it was a doubled 1104nm diode. Not aware of any Nd lines at 1104nm.
Click to expand...

Well, with a quick look through ye auld Handbook of Laser Wavelengths it appears that Nd:YAG has a line at 1105nm. Though the paper was published in 1968, and I can't seem to find any other sources to back that up. But, while searching for the source, I found that Nd:GGG actually lases 1104nm with reasonable efficiency.

EDIT: Looks like Encap beat me to it.
 
Last edited:
Encap said:
Here is how one group did it back in 2012:
"A high-power diode-side-pumped 1,105 nm Nd:GGG laser and a laser at 552 nm based on intracavity frequency doubling of 1,105 nm laser are demonstrated for the first time. A 26.8-W 1,105 nm laser continuous wave output was achieved under the incident pump power of 170 W. A LiB3O5 crystal is used for second harmonic generation of 1,105 nm laser. When the pump power was 170 W, the average output power at 552 nm of 7.3 W was obtained, corresponding to the optical conversion efficiency of 4.3 %. And the minimum pulse width is 181 ns with the pulse repetition rate of 10 kHz. The M2 factors are measured to be 19.8 and 17.6 in the horizontal and vertical directions, respectively."

Article is here: Diode-side-pumped Nd:GGG laser at 1,105*nm and frequency-doubled laser at 552*nm - Springer
Click to expand...

H2Oxide said:
Well, with a quick look through ye auld Handbook of Laser Wavelengths it appears that Nd:YAG has a line at 1105nm. Though the paper was published in 1968, and I can't seem to find any other sources to back that up. But, while searching for the source, I found that Nd:GGG actually lases 1104nm with reasonable efficiency.

EDIT: Looks like Encap beat me to it.
Click to expand...

I stand corrected - thanks guys! :)
 
You must log in or register to reply here.





Back
Top