Tuesday 17/04/18  we check that the dust we have seen on the pump fiber of the neoVAN (PSL-FOPT-1703-03) did not change, increase and could be responsible for our trouble wrt the neoVAN beam profile. This dust has been seen for the first time during the moving of the neoVAN diode from the laser lab to the eeroom; we had to disconnect the fiber from the head and then we saw the burnt "dust".

we see no change wrt the data from the 15/01/18