Also analyzed are the BBO crystal frequency-doubling, the whitelight supercontinuum generation, the parametric superfluorescence generation,and the second harmonic generation of the idler beam in the femtosecond OPAsystem.

• 并分析了BBO晶体的倍频、超连续白光的产生、参量超荧光的产生以及BBO晶体飞秒OPA中闲频光二次谐波产生的条件。