Incident pump power (mW),Output pawer (mW) 73.2,2.625 67.3,2.223 62.3,1.85 57.6,1.527 52.6,1.135 46.7,0.766 40.1,0.39 38,0.223 36,0.112 34,0.018 32,0 30,0 25,0