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采用掺杂生长了一系列用于大功率ＬＤ泵浦连续激光器倍频的磷酸钛氧钾（ＫＴｉＯＰＯ４， ＫＴＰ）；如：Ｎｂ：ＫＴＰ、Ｎａ：ＫＴＰ、Ｃｅ：ＫＴＰ及Ｒｂ：ＫＴＰ、Ｃｓ：ＫＴＰ等，虽然其中一些具有比 普通ＫＴＰ晶体高的效率和抗光损伤阈值，并在４％Ｎｂ：ＫＴＰ中实现了ＮＣＰＭ，但是在大部分掺杂晶 体中生长条纹、包裹体等均较严重，影响了晶体的均匀性，不适于大功率连续激光器应用，为提高ＫＴＰ 晶体均匀性和抗光损伤阈值，采用特制原料和改进工艺生长了优质ＫＴＰ晶体，可用于大功率ＬＤ泵浦的 Ｎｄ：ＹＶＯ４连续激光器倍频，最大的连续绿光输出功率达到 ５Ｗ。
A series of potassium titanyl phosphate (KTiOPO4, KTP) for doubling frequency of high power LD-pumped continuous laser was grown by doping; such as Nb: KTP, Na: KTP, Ce: KTP and Rb: KTP, Although some of them have higher efficiency and light damage threshold than ordinary KTP crystals and realized NCPM in 4% Nb: KTP, the growth stripes and inclusions in most of the doped crystals are more serious and affect The homogeneity of the crystal is not suitable for high power continuous laser applications. In order to improve the KTP crystal uniformity and light damage threshold, high quality KTP crystals are grown by using special materials and improved processes, which can be used for continuous high power LD pumped Nd: YVO4 Laser doubler, the maximum continuous green output power to 5W.