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在时域内应用慢包近似（ＳＶＢＡ）的方法，对光波导内光波传输的时域计算做了简化．应用该方法计算了不连续光波导中光脉冲的传播，得到波导不连续处的传输情况．文中应用的计算方法可以大大节省计算机的内存，节省计算时间，是进行时域计算的一种行之有效的方法
In the time domain using slow packet approximation (SVBA) method, the optical waveguide within the time domain to simplify the transmission of light. The propagation of light pulse in the discontinuous optical waveguide was calculated by this method and the transmission at the waveguide discontinuity was obtained. The calculation method used in this paper can greatly save the memory of the computer and save the calculation time, which is an effective method for time domain calculation