Thats really incredible! Getting an M140 diode that efficient is very rare. I think the only other one Ive seen was from AnthoT, he was getting 2.6 W @ 1.8 A with a 3 ELEMENT LENS! Ufortunately, I dont think he ever tried it with a G lens...
Just noticed your response time for the LPM was very quick too. Are you using an Ophir head? :beer:
Very nice. Yep when you cool them they see amazing increases in power. That is close to 3°C which would give you a huge bump. The best is if you can maintain the temperature with a TEC. I still sounds like a pretty efficient unit even with the cooling. Also a word of caution If you are cooling your laser a lot you can get condensation in there from the quick temperature changes.:beer: