need help!

[m.bruni99]

hi! i'm new!
i need info on color change on laser:
i heard about some filter that could convert ir in green light, is it true?
thanks
marco

[Hatschi]

Halli Hallo

What you mean is made with SolidState-lasers.
The most easy way is to take the 1064nm line from a ND:YAG or ND:YvO4 root and convert ist with a KTP to 532nm (green).

All green laserpointers do it this way.

Best for you to find a good english description is to search the internet for: DPSS (Diode Pumped Solid State).

Hatschi

[m.bruni99]

many thanks..
could you tell me how much a ktp?
it is ok th ktp that i find in green laser point (50-60$)??

thanks

Marco Bruni

[Hatschi]

Halli Hallo

99 percent of the pointers are using combined crystals, says, lasercrystal and KTP are fixed together with a special glue.

Hatschi