,Thermal Analysis and Experimental Study of End-Pumped Nd∶YLF Laser at 1053 nm

• 作 者: R.M.EL-AGMY N.AL-HOSINY
• 机 构: Department of Physics, Faculty of Science, Helwan University 11792-Helwan, Egypt“,”Department of Phy
• 出 处: 光子传感器（英文版）
• 发表日期: 2017年4期
• 关键词: Solid state lasers thermally induced lens wavefront sensors

We have numerically analyzed the thermal effects in Nd:YLF laser rod.The calculations of temperature and stress distributions in the Nd:YLF laser rod were performed with finite element (FE) simulations.The calculations showed that the laser rod could be pumped up to a power of 40W without fracture caused by thermal stress.The calculated thermal lens power of thermally induced lens in Nd:YLF (σ-polarization) laser rod was analyzed and validated experimentally with two independent techniques.A Shack-Hartmann wavefront sensor and a Mach-Zehnder interferometer were used for direct measurements of focal thermal lens at different pump powers.The obtained measurements were coinciding with the FE simulations.