基于层状固定光折变全息的单块光学修正的gamma网络

提出一种利用ＣＯ２激光热固定的层状光折变体相位全息在一块晶体内实现一个固态微小化光学系统的方法理论分析证明利用双面线状激光加热的方案可以形成适合热固定的层状温度分布，初步实验中，在一块ＬｉＮｂＯ３光折变晶体中建立了单级的修正的ｇａｍｍａ网络，由此表明把一个复杂的光学系统微小化组装在单块的晶体中是可行的。

Optical Single Block Modified Gamma Network Using Layered Thermally Fixed Photorefractive Holograms

A scheme of using CO 2 laser beams to thermally fix layers of photorefractive phase holograms in a single block of LiNbO 3 crystal to fabricate a solid state miniaturized optical system is suggested. Theoretical analysis shows that by the heating with two face to face narrow beams a layer like temperature distribution switable for fixing can be reached. In a primary experiment, a stage of the Gamma network is realized in a single blook of photorefractive LiNbO 3 crystal. It is thus seen that to package and miniaturize a complicated optical system into a single blook of crystal is possible.