Schiek R, Friedrich L, Fang H, Stegeman G I, Parameswaran K R, Chou M H, Fejer M M
School of Optics and Center for Research and Education in Optics and Lasers, University of Central Florida, 4000 Central Florida Boulevard, Orlando, Florida 32816-2700, USA.
Opt Lett. 1999 Nov 15;24(22):1617-9. doi: 10.1364/ol.24.001617.
Nonlinear wave propagation was investigated experimentally in coupled waveguides by means of the cascaded nonlinearity in quasi-phase-matched second-harmonic generation. With a specially designed wave-vector-mismatch distribution along the propagation axis, cascading was optimized for low fundamental depletion. High-contrast, ultrafast all-optical switching with switching powers of tens of watts was observed.
通过准相位匹配二次谐波产生中的级联非线性效应，对耦合波导中的非线性波传播进行了实验研究。沿着传播轴采用特殊设计的波矢失配分布，对级联进行了优化，以实现低基波损耗。观察到了具有数十瓦开关功率的高对比度、超快全光开关。
