Q already did the tweak up of the PSL SHG crystal alignment. HE SHOULD ELOG ABOUT THIS. What was the final power of green that you got? Do we have any record of a previous measurement to compare to?
As Jenne mentioned, I did this.
Specifically, I first tweaked the mirror pointing the IR into the SGH in pitch and yaw to maximize the green power, and then adjusted the little set screws on the side of the SHG to maximize further. Power after the harmonic separator was of order 150uW. On the Y Green BBPD, I got ~48uW, instead of the 40uW Rana, Jenne, and myself saw the other night.
now that I look through old ELOGs, I find some posts by Kiwamu saying the power should be around 650uW, and that he was able to get 640uW out. So: I should do this again, systematically, more carefully, etc., etc. (Linked ELOG also states that optimum SHG temperature is alignment dependent...)