CAJ | 학술논문

为了满足在光纤通信系统中不同传输速率对带宽的要求，提出了基于1个3×3和2个2×2光纤耦合器级联组成全光纤马赫-曾德尔干涉仪（MZI）型不等带宽波长交错滤波器的设计方案。运用光纤传输理论和矩阵理论，推得器件输出谱的表达式，对其特性进行数值模拟分析，结果表明：器件将50 GHz 的输入信号分离成信道间隔为100 GHz 的奇偶两路输出信号，满足了10 Gbit／s＋40 Gbit／s 混合系统中不同传输速率对带宽的要求，实现不等带宽传输；器件中对耦合器的结构参数偏差要求不同而降低了制作难度。该滤波器较等带宽交错滤波器带宽利用率更高，在光纤通信系统中有着潜在的应用价值。
위료만족재광섬통신계통중불동전수속솔대대관적요구，제출료기우1개3×3화2개2×2광섬우합기급련조성전광섬마혁-증덕이간섭의（MZI）형불등대관파장교착려파기적설계방안。운용광섬전수이론화구진이론，추득기건수출보적표체식，대기특성진행수치모의분석，결과표명：기건장50 GHz 적수입신호분리성신도간격위100 GHz 적기우량로수출신호，만족료10 Gbit／s＋40 Gbit／s 혼합계통중불동전수속솔대대관적요구，실현불등대관전수；기건중대우합기적결구삼수편차요구불동이강저료제작난도。해려파기교등대관교착려파기대관이용솔경고，재광섬통신계통중유착잠재적응용개치。
In order to satisfy the requirement of different transmission speed on bandwidth in optical fiber communication system,an all-fiber different bandwidth optical interleaver is proposed and discussed based on a cascaded Mach-Zehnder Interferometer.The all-fiber optical interleaver uses a 3×3 and two 2×2 fi-ber couplers.The output spectrum expression is established and described by using the principle of fiber transmission and the matrix transfer function.The results of numerical simulation show that 50GHz input signal of devices is separated into channel spacing of 100GHz odd-even two output signals.It satisfies the requirement of different transmission rates on bandwidth in 10Gbit/s + 40Gbit/s mixed system and im-plements different bandwidth transmission.Different requirements of coupling parameter deviation of components reduce the difficulty degree of making the device.Compared with the traditional equivalent bandwidth interleaver,the filter has higher bandwidth utilization and the potential application value in op-tical fiber communication system.