无磁光学非互易实验教学与设计

Experiment Teaching and Design of Magnet-Free Optical Non-reciprocity

作为一种有趣的非线性光学效应,四波混频在众多领域有重要的应用。本文利用四波混频效应实现无磁的光学非互易,分别研究了信号光失谐量、泵浦光光功率和气体池温度等参量对信号光正向和反向传播时透过率的影响。实验结果表明改变这些参量可有效地调控正向透过率,而极低的反向透过率几乎不受影响。该文对于大学物理实验教学具有一定的参考价值。

As an interesting nonlinear optical effect,four-wave mixing has important applications in many fields.The magnet-free optical non-reciprocity is realized by using the four-wave mixing effect.The effects of signal optical detuning,pump optical power and gas pool temperature on the transmittance of signal light during forward and backward propagation are investigated.The experimental results show that the forward transmittance can be controlled effectively by changing these parameters,while the very low reverse transmittance is almost unaffected.It has a certain reference value for college physics experiment teaching.