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介绍了几种全光半减器的实现方案,分析了各方案的结构和工作原理,以及各自的优缺点,并展望了半减器的发展方向。
Several schemes of all-optical half-subtractor are introduced, the structure and working principle of each scheme are analyzed, their advantages and disadvantages are analyzed, and the development direction of the half-subtractor is also prospected.