,2.5 MHz ,,,1.25 MHz ,,,"1.25 MHz " Incident pump power (mW),Output power (mW),,Incident pump power (mW),Output power (mW),,Incident pump power (mW),Output power (mW) 70,4.337,,69.5,1.058,,69.2,3.154 65,3.763,,65.1,0.923,,64.8,2.851 60,3.357,,60.4,0.711,,60.3,2.527 55.1,2.863,,55.3,0.473,,55,2.15 50.3,2.402,,50,0.246,,50,1.807 45,2.031,,45.3,0.11,,45,1.487 40,1.5683,,43,0.078,,40,1.109 35,1.174,,41,0.048,,35,0.662 30,0.693,,40,0.012,,31,0.328 27.8,0.626,,39,0,,28,0.013 25,0.271,,38,0,,27,0 23,0.065,,36.4,0,,25,0 22,0,,30,0,,20,0 21,0,,25,0,,, 20,0,,0,,,, 15,0,,0,,,, 10,0,,0,,,,