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



New CNI wavelength! 552nm DPSS.

blueasthesky

Super Moderator
Staff member
Joined
Sep 5, 2013
Messages
8,689
Points
113
Was just taking a look at CNI's webpage and noticed they now offer 552nm as a new wavelength.

Anyone else notice this? Next step, add it in a pen :)

552 nm Green Laser, Solid State Laser | CNIlaser

-Alex
 



Richie89

Well-known member
Joined
May 9, 2015
Messages
1,159
Points
113
so close to 555nm :D
I can't imagine the price tag, and how beautiful it would look
 

steve001

Well-known member
Joined
Jun 3, 2007
Messages
2,478
Points
113
Last edited:

Sta

Well-known member
Joined
Jan 27, 2014
Messages
1,729
Points
83

Sadly they're just 532nm. Chinese companies often make typos like that, it can be frustrating. :(
 

Razako

Well-known member
Joined
Mar 17, 2006
Messages
4,502
Points
113
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.
 

blueasthesky

Super Moderator
Staff member
Joined
Sep 5, 2013
Messages
8,689
Points
113
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.

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

-Alex
 

steve001

Well-known member
Joined
Jun 3, 2007
Messages
2,478
Points
113
Possibly. I wonder what 552nm is used for, if anyone knows, do tell! Pretty neat to still see new wavelengths popping up :)

-Alex

Life sciences.
A google search shows this wavelength is available from other companies.
 

blueasthesky

Super Moderator
Staff member
Joined
Sep 5, 2013
Messages
8,689
Points
113
Life sciences.
A google search shows this wavelength is available from other companies.

Well this is a new wavelength for CNI.

Thanks for letting me know!

-Alex
 
Last edited:

H2Oxide

Well-known member
Joined
Dec 11, 2014
Messages
1,016
Points
83
Any idea what it is? My guess would be OPSL or an uncommon Nd doped crystal (doubled of course).
 

diachi

Well-known member
Joined
Feb 22, 2008
Messages
9,793
Points
113
Any idea what it is? My guess would be OPSL or an uncommon Nd doped crystal (doubled of course).

I thought I read somewhere on here that it was a doubled 1104nm diode. Not aware of any Nd lines at 1104nm.
 

Encap

Well-known member
Joined
May 14, 2011
Messages
5,700
Points
113
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
 

H2Oxide

Well-known member
Joined
Dec 11, 2014
Messages
1,016
Points
83
I thought I read somewhere on here that it was a doubled 1104nm diode. Not aware of any Nd lines at 1104nm.

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:

diachi

Well-known member
Joined
Feb 22, 2008
Messages
9,793
Points
113
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

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.

I stand corrected - thanks guys! :)
 




Top