【作者】 沈常宇； 李晨霞； 张在宣；

【Author】 SHEN Changyu LI Chenxia ZHANG Zaixuan (China Jiliang University,Hang Zhou,310018)

【机构】 中国计量学院光电子研究所；

【摘要】 实验发现,环形激光束在非线性克尔介质中传输时,当入射光超过一定功率时,光束产生多级自聚焦现象,传输过程中光斑出现分裂现象;理论上,建立一光束模型,通过数值求解非线性Schr?dinger方程,得出光束在一定功率之上会产生自聚焦和光斑分裂现象,并详细讨论了环形斑激光束在非线性克尔介质中的传输特性。更多还原

【Abstract】 The self-focusing and spot-splitting effect of The transmission of Double-Ring laser beam in Kerr-medium is investigated in the experiment. With solving nonlinear Schr?dinger equating numerically.The self-focusing and spot- splitting are observed in the transmission process if the laser beam power is above a certain value. It is also discovered the characteristics of the double-ring laser beam Propagating in the Kerr-Medium.更多还原