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作为一种新颖的MEMS器件,光栅光阀(GLV)被应用于高清晰数字电视和光通信的动态增益均衡(DGE)上,使用角度谱方法分析了这种光调制器的衰减机理,并对其仿真,得到了输入光衰减的曲线。在长距离传输过程中,由于多个EDFA级联产生的非线性,提出了对增益进行动态均衡的要求。基于GLV可以集成为一维阵列的特点,提出了基于这种光调制器的动态增益均衡器的结构,并进行了4路输入光信号的功率均衡实验,在实验中,输出的光功率可以衰减10dB以上,纹波可以控制在0.5dB以内。
As a novel MEMS device, the grating light valve (GLV) is applied to the dynamic gain equalization (DGE) of high definition digital television and optical communications. The angle spectrum method is used to analyze the attenuation mechanism of the optical modulator. Simulation, the input light attenuation curve. In the long-distance transmission, due to the nonlinearity of multiple EDFA cascades, the requirement of dynamically equalizing the gain is proposed. Based on the feature that GLV can be integrated into a one-dimensional array, a dynamic gain equalizer based on this optical modulator is proposed and the power equalization experiment of 4 input optical signals is performed. In the experiment, the output optical power can be attenuated More than 10dB, ripple can be controlled within 0.5dB.