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解复用器件是波分复用(WDM)系统中的关键性器件。在设计二元光学器件波分复用器件中,需要对二元光学器件的角色散进行分析。利用相位二元化方程对衍射光学元件(DOE)角色散及角色散温变特性进行了分析,最终得到衍射光学元件色散特性的表达式,并同时给出了角色散的温度变化特性。采用此理论结果确定杨顾算法目标值,设计了用于波分复用的二元光学器件。利用菲涅耳衍射对器件角色散特性及角色散热特性进行了仿真,仿真结果验证了理论的正确性。
Demultiplexing devices are the key devices in wavelength division multiplexing (WDM) systems. In the design of binary optical devices wavelength division multiplexing devices, the need for binary optical components of the dispersion analysis. By using the phase binarization equation, the angular dispersion of the angular dispersion and the angular dispersion of the diffractive optical element (DOE) are analyzed. Finally, the expression of the dispersion characteristic of the diffractive optical element is obtained, and the temperature variation of the angular dispersion is also given. Using this theoretical result to determine the target value of Yang Gu algorithm, a binary optical device designed for wavelength division multiplexing is designed. Fresnel diffraction is used to simulate the device character dispersion and character heat dissipation. The simulation results verify the correctness of the theory.