You'll want to start with a LAMP PUMPED CW ROD such as a laserscope or other designed for CW or Q-switched use, The SSY is doped to high for cw use, though with QCW driving and water cooling you could get some wickid Q-swiched pulses out. FWIW I pumped a 3 inch laserscopt rod with 4x 60W mrs christie coherent monster diodes, removed the emitter assemblies and re purposed driving each at 40W so 160W of 808 in, q-switched the yag 1064 output at 2.4KHz got close to 38W of average green out. It was nice because everything fit in a larger computer case except the head. It was pretty wild seeing a almost 40W green beam from something drawing about 500W