Self-activation crystal neodymium phosphate and preparation method thereof

The invention relates to a self-activation crystal neodymium phosphate and a preparation method thereof. Neodymium oxide and NH4H2PO4 are used as the raw materials; the lithium carbonate-molybdenum oxide is used as a fluxing agent; and the solute density is 20%. The neodymium phosphate crystal prepared by using a fluxing agent growing method is a monoclinic system, wherein the space group is P21/n. A cell parameter is the neodymium phosphate crystal prepared by the invention which is used as a laser working matter in order to output 1060 nm and 1339 nm lasers. The crystal has a high active ions density so the crystal can be used for manufacturing a microchip laser device applied in the fields of medical treatment, scientific research, military, and the like.