Some other picture : this time i put the vandate in front of the cmount diode. It's a "mid fried" diode, with a lot of death zone, but it works nicely. I will replace the cmount by a new one after this post.
I saw various TEM, and i also discovered that the KTP is both side coated (it work in any position). i got a strong (beam is visible in mid dark) beam (maybe in the 10/20mw range). I placed the OC and then i moved the KTP to find max output, and right, there is some location where the output is better as gooey say :beer:.
i also noticed a weak beam at some angle of the principal beam, interesting !
I run the setup during 20 minute with no degradation of performance, its very stable (at 10/20mw)
i will create a new thread in the green section, see you there !
i used some water fog for these beamshot picture
im losing a lot of IR, maybe i will use a fast collimation lens of Chris
the green is still present, but no fog to reveal it
you can see the other tiny beam above the first powerful one