[1] Fan T Y,Byer R L.IEEE J Q E,1987;QE-23(5):605
[2] Risk W P.J O S A(B),1988;5(7):1412
[3] Mead P F,Bush S P,Davis C C.IEEE J Q E,1994;Q E-30(12):2902
[4] Duczynski E W,Fluber G,Mitzscherlich.Tunable Solid-State Lasers II.Berlin:Springer-Verlag,1986:282