Naitoh H, Muto K, Nakayama T
Appl Opt. 1978 Jan 1;17(1):101-4. doi: 10.1364/AO.17.000101.
An optical branch and switch based on a unique mirror effect were fabricated by varying the amount of Ti diffused in a LiNbO(3) waveguide, and their properties were investigated. In this type of optical branch, the branching ratio of the light intensity could be varied by the electric field as well as by the separating angle and the effective indices of the waveguides. The main features of this optical switch are (1) small and simple electrode form and (2) a separating angle large enough to accommodate a number of switches on a single substrate. The ratio of the optical branch light intensity to that of the main waveguide was varied from 0.10 to 12.4 by applying the electric field from 0 V/microm to 8 V/microm.
通过改变扩散到铌酸锂（LiNbO₃）波导中的钛含量，制造了一种基于独特镜面效应的光分支和光开关，并对其特性进行了研究。在这种类型的光分支中，光强的分支比可以通过电场、分离角以及波导的有效折射率来改变。这种光开关的主要特点是：（1）电极形式小且简单；（2）分离角足够大，能够在单个衬底上容纳多个开关。通过施加从0 V/μm到8 V/μm的电场，光分支光强与主波导光强的比值从0.10变化到12.4。
