DPSS Laser 

Pusch DPSS Laserpointer with opened IR filter ... original LD died after some over current from the SHIT original constant current.

from left to right :  1. Pump Diode with 808nm & 1W ,,, 2. micro lens ...  --->  3. COMPOSIDE MODULE with Nd:YVO4 (left side : HR1064nm,AR808nm,AR532nm)

KTP (right side HR1064,AR532) ,,, 4. colimatin optics ... 5. IR Filter to protect our eyes from 808nm

in the middle you can see the green coating of the KTP (in German Kaliumdihydrogenphosphat KH2PO4)

Laserhead @ work (at least 500mA) ,,, the digicam also catch any  808nm deep red from the diode ... ATTENTION ... protect our eyes when working without IR filter

any digicam see much more on lower frequency ,, so beware our eyes .... original it seems to be harmless red  radiation