计算稀土离子Tm3+，Ho3+共掺晶体双稳特性，基于速率方程计算不同泵浦光泵浦时各能级粒子数分布-Calculation of rare-earth ion Tm3+, Ho3+ co-doped crystal bistable characteristics, based on the rate equations of different pump pump level at the time of particle number distribution

光子材料模型，模拟多种稀土的元素光谱，主要是Er和Nd-Photonic material model to simulate a variety of rare earth elements spectrum, mainly Er and Nd