We put forward a new method to realize optical label switches using the phase shifted effective in Bragg phase shifted grating and device a experiment to achieve optical label switching.
提出了用布拉格相移光纤光栅中相移来实现低功率的光标交换的新方法。 设计了一个基于该方法的光标记交换实验。
Optical fibre grating utilize photosensitive characteristic to form the space phase grating in the core, it can change the transmission route of the light wave in the light-transmitting fibre.
光纤光栅是利用光纤材料的光敏性，在纤芯内形成空间相位光栅，它可以改变光波在光导纤维中的传输路径。
With a phase grating located at Fourier frequency plane, optical image subtraction is obtained as a result of the coherent superposition of the zeroth and the first order of the diffracted light.
置一位相光栅于相干光学处理系统频谱平面，利用其零级与一级衍射光的相干迭加实现图象相减。
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