【摘要】 波分复用/解复用器件在光纤通信中具有重要的应用。设计了一种自由空间的微闪耀光栅解复用器,通过对其衍射光场的复振幅分布的研究,得到了满足1级闪耀输出的光栅方程,实现了复合波长信号光在空间上的解复用。通过对微闪耀光栅解复用器的衍射效率和串扰进行分析后表明,微闪耀光栅解复用器具有很高的衍射效率,信号间串扰非常小,而且元件尺寸小,结构紧凑,集成度高,在光通信和光信息处理中具有一定的应用价值。更多还原

【Abstract】 The wavelength division multiplexer/demultiplexer is one of the important passive devices in optical fiber communication systems.A novel free-spatial Demultiplexer based on micro blazed-grating is reported.The theory of scalar diffraction is adopted to analyze the distribution of the complex amplitude after the beam transits through the blazed grating,which satisfies the first rank blazed,and the grating equation of the micro-blazed grating is presented.The analysis of diffractive efficiency and cross talk show that the micro blazed-grating demultiplexer can be applied in the field of optical fiber communication because of high diffractive efficiency and low cross talk.更多还原