摘要
用５ｍ ｍ 的 Ｋ Ｔ Ｐ（ Ｋ Ｔｉ Ｏ Ｐ Ｏ４）和 Ｂ Ｂ Ｏ（β Ｂａ Ｂ２ Ｏ４）非线性晶体，对皮秒的 Ｃ Ｐ Ｍ ， Ｎｄ： Ｙ Ａ Ｇ 脉冲激光的腔外倍频效应进行研究，获得倍频能量转换效率分别为４２％ 和３２％ ，证明 Ｋ Ｔ Ｐ倍频效率高于 Ｂ Ｂ Ｏ。
The extracavity second harmonic generation(SHG) of nonlinear crystals KTP andBBO on picosecond CPM,Nd:YAG pulsed laser are studied experimentally.For a KTP or BBO crystal with a length of 5 mm,a 42% or 32% efficiency of frequency-doubled energy conversion can be obtained respectively. The frequency doubling efficiency of KTP is demonstrated experimentally to be higher than that of BBO,a result coinciding with that from theoretical analysis.
