The tremendous progress made in recent years in the production of tellurite glasses has led to the development of different optical elements and devices on their basis such as microresonators and microlasers. The investigation of tellurite glass microresonators is of great importance for many potential applications. We studied theoretically and experimentally the nonlinear thermo-optical effects in tellurite glass microresonators under continuous-wave laser pumping. We calculated the temperature distributions for both, steady-state and transient non-stationary regimes and simulated shifts of the resonant wavelengths of whispering gallery modes. We produced Tm-doped tellurite glass microspheres and measured the resonant wavelength shifts as functions of the heat power. Our experimental results are in a good agreement with the theoretical predictions.

近年来，在碲酸盐玻璃生产中取得的巨大进步，导致了在其基础上开发不同的光学元件和设备，例如微谐振器和微激光。碲酸盐玻璃微谐振器的研究对于许多潜在应用非常重要。我们在理论和实验上研究了连续波激光泵浦下碲酸盐玻璃微谐振器中的非线性热光学效应。我们计算了稳态和瞬态非平稳状态的温度分布，并模拟了回音壁模式的共振波长的偏移。我们生产了掺Tm的碲酸盐玻璃微球，并测量了共振波长随热功率的变化。