【摘要】 为实现更窄信道间隔的密集波分复用 (DWDM) ,设计了一种基于偏振光干涉仪的交错滤波器 (in-terleaver)。该器件可以把 10 0 GHz信道间隔的 DWDM信号光波分成两组 2 0 0 GHz间隔信号 ,各信道功率均衡 ,与 ITU- T建议的波长位置、间隔基本符合 ,通带范围为 C波段 ,隔离度分别大于 2 0 d B和 30d B,- 1d B带宽均为 0 .46 nm。更多还原

【Abstract】 A novel interleaved filter based on polarization beam interferometer is designed,which applied in close spacings DWDM fiber communications.In experiment,this interleaver does separate DWDM odd and even channel into two groups with the power equalization and satisfied with ITU-T suggestions.Its passband is C waveband,channels isolation are 20 dB and 30 dB respectively,and -1 dB bandwidth are 0.46 nm.The experiment results of 200 GHz-spacings output characteristics are reported simultaneously.更多还原