I morn the death of the laser that severed me for 10 years but it donated it's parts that allowed me to get a 270mw Greene back into operation (considering the old laser was only 25mw) i was able with paint/epoxy stripper to get a TEC off and use it to replaced the broken one on the other laser. I am also wondering if the optics and prisms in the other laser can correct for the rectangle beam from a blue multi mode, or even make it into a dpss blue, for some reason i have always liked that color blue from a dpss laser, i am thinking the pump diode for that is 1064? I will investigate when i have another failure as my remaining 4 crystalaser brand are nearing end of life on the diodes