1. The problem statement, all variables and given/known data Show that the output coupling that maximizes output intensity (Iout=0.5tIsat(2gl/(t+s) -1) is given by t=sqrt(2gls)-s 2. Relevant equations 3. The attempt at a solution Iout/Isat=0.5tgl/(t+s)-0.5t 1=0.5tgl/(t+s)-0.5t 1+0.5t=0.5tgl(t+s) (t+s)+0.5t(t+s)=tgl this gives me a really long equation. Is it true that for maximum output coupling, Iout/Isat=1?