Pump radiation from {HEAD ~ the diode pumping sources} is collimated by {TAIL ~ an optical fiber} and the fold angle is selected to mode match the pump radiation to the mode volume 
Pump radiation from { HEAD ~ the diode pumping sources } is collimated by { TAIL ~ an optical fiber } and the fold angle is selected to mode match the pump radiation to the mode volume
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH