Low Noice Nd: Yag Laser Crystal Rod

ND: YAG Laser Crystal Rod
The laser crystal can transform the energy provided by the outside world into the crystal material with highly parallel and monochromatic laser coherent in space and time through the optical resonator. The matrix crystals used in laser crystals are mainly oxides and fluorides.In addition to requiring its stable physical and chemical properties, it is easy to grow large-sized crystals with good optical uniformity, and its price is cheap. However, the adaptability between it and the activated ions should be considered. For example, the radius, electronegativity and valence state of the matrix cation and the activated ions should be as close as possible.In addition, the effect of matrix crystal field on activated ion spectrum should be considered.For some matrix crystals with special functions, the addition of the activated ions can directly generate a laser with certain characteristics. For example, in some nonlinear crystals, the activated ions can be directly converted into harmonic output through the matrix crystals.