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从模式转换效率、带宽和波长调谐范围等角度分析了普通单模光纤中声光模式转换的性质 ,并在实验上实现了插入损耗小于 0 1dB ,带宽小于 1nm ,调谐范围大于 30nm的光纤声光滤波器。
The properties of acousto-optic mode conversion in ordinary single-mode optical fiber are analyzed from the aspects of mode conversion efficiency, bandwidth and wavelength tuning range. The experimental results show that the insertion loss is less than 0 1dB, the bandwidth is less than 1nm and the tuning range is greater than 30nm filter.