Author Affiliations
Abstract
State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
All-optical logic gates including AND, XOR, and NOT gates, as well as a half-adder, are realized based on two-dimensional lithium niobate photonic crystal (PhC) circuits with PhC micro-cavities. The proposed all-optical devices have an extinction ratio as high as 23 dB due to the effective all-optical switch function induced by two-missing-hole micro-cavities. These proposed devices can have potential implementation of complex integrated optical functionalities including all-optical computing in a lithium niobate slab or thin film.
230.3750 Optical logic devices 230.5298 Photonic crystals Chinese Optics Letters
2019, 17(7): 072301
利用级联的线性电光效应对光进行控制是一种非常有效而且常用的控制光的手段。对于周期性畴反转铌酸锂(PPLN)一维光子晶体，在平行于光轴方向施加电场可周期性改变折射率大小，形成电光光子晶体结构；在垂直于光轴方向施加电场不仅可以改变折射率椭球大小，同时可以周期性改变折射率椭球主轴方向。综述了部分已报道的基于周期性的级联电光效应的应用，介绍了其在可调的手性器件、全光逻辑门、基于快慢光的时间隐身和非线性光学等方面的应用，展望了级联电光效应在未来集成光子芯片中的潜在应用。
非线性光学 级联电光光子晶体 电光效应 铌酸锂 激光与光电子学进展
2017, 54(6): 060001
