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首页> 外文会议>Conference on Spatial Light Modulators: Technology and Applications Jul 31-Aug 1, 2001, San Diego, USA >Research on Optical A/D Conversion using Interference Modulators
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Research on Optical A/D Conversion using Interference Modulators

机译：利用干涉调制器进行光学A / D转换的研究

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During the high speed processing, the intensity of the light beam must be detected and converted into some digital signals without electronic device for system controlling. The A/D converting should be in full optics way. The interferometer may make some fringes correspond the input light, while the fringe intensity contains some important information. When a photorefractive material was put into the interference field, another reading-laser beam would be diffracted. The order of the diffraction can be controlled because the nonlinear reactivity of photorefractive materials. Then, the reading laser beam goes into an encoder to demodulate signals. Through the demodulating processing in light speed, the group-codes may be output as the input signals of other control system. The speed of the modulating should be tied from the photorefractive materials. The important step is how to change the time domain information into space domain information. If the responding speed of the photorefractive material is suitable to react on the input signal light, the conversion is successful. In that process, organic photorefractive materials or crystal photorefractive materials have different application features.
机译：在高速处理期间，必须检测光束的强度并将其转换为一些数字信号，而无需电子设备进行系统控制。 A / D转换应采用全光学方式。干涉仪可以使一些条纹对应于输入光，而条纹强度包含一些重要信息。当将光折变材料放入干涉场时，另一束读取激光束将发生衍射。因为光折射材料的非线性反应性，所以可以控制衍射的顺序。然后，读取的激光束进入编码器以解调信号。通过光速的解调处理，可以将组代码作为其他控制系统的输入信号输出。调制速度应与光折变材料联系在一起。重要的步骤是如何将时域信息转换为空间域信息。如果光折变材料的响应速度适合于对输入信号光进行反应，则转换成功。在该过程中，有机光折变材料或晶体光折变材料具有不同的应用特征。

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