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Transverse modes of a laser using volume Bragg grating as the cavity mirror

机译:使用体积布拉格光栅作为腔镜的激光器的横向模式

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摘要

A simulation and experiment were performed to demonstrate that a laser using volume Bragg grating as one of the cavity mirrors can achieve lasing even if the laser cavity length exceeds the traditional stable cavity condition. The laser transverse mode changes from a Gaussian beam into a ring-shaped mode as the laser cavity length increases from stable to unstable cavity conditions. At the same time, the effective modal reflectivity is reduced as the cavity length increases.
机译:通过仿真和实验证明,使用体积布拉格光栅作为腔镜之一的激光器即使激光腔的长度超过了传统的稳定腔条件,也可以实现激光发射。随着激光腔长度从稳定到不稳定腔状态的增加,激光横向模式从高斯光束变为环形模式。同时,有效模态反射率随着腔体长度的增加而降低。

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