光学学报, 2008, 28 (4): 638, 网络出版: 2008-04-21   

环形谐振器辅助马赫-曾德尔干涉仪型波长交错滤波器的研究

Study of Interleaver Based on Ring Resonator Assisted Mach-Zehnder Interferometer
作者单位
北京交通大学光波技术研究所全光网与现代通信网教育部重点实验室, 北京 100044
摘要
将环形谐振器与马赫-曾德尔干涉仪相结合,利用谐振器反馈回路引入的相位调节效应,选择合适的谐振器耦合角,设计出一种具有最大平坦滤波响应的环形谐振器辅助马赫-曾德尔干涉型波长交错滤波器。与普通马赫-曾德尔干涉型波长交错滤波器相比,不仅阻带抑制(>38dB)和过渡带滚降特性明显加强,而且在通带中心15 GHz范围,将色散降低到±10 ps/nm以内,从而可以有效避免对传输信号造成失真。在此基础上,进一步研究环周长(Lr)与马赫-曾德尔干涉臂长差(ΔL)之间的关系,指出波长交错滤波器奇偶输出端口的带宽分配比直接决定于Lr/ΔL,当调整Lr/ΔL=1/2,可以实现具有1∶2非对称带宽分配特性的新型波长交错滤波器,为10 Gb/s向10 Gb/s+40 Gb/s系统升级提供一种简单、灵活的方式。
Abstract
An interleaver combining ring resonator with Mach-Zehnder interferometer (MZI) is proposed. Based on the phase modification provided by the ring resonator, a maximum flatness filtering response is obtained by optimizing the coupling angle of resonator. Compared with the traditional MZI, the isolation in stopband (>38 dB) and the rolloff in transition band are strengthened, but also the dispersion in passband is reduced to ±10 ps/nm in the center frequency range of 15 GHz which eliminate the distortion of transmission signals. Furthermore, the influences of ring circumference (Lr) on length difference (ΔL) of MZI arms are investigated, and the bandwidth allocation of odd-even ports is directly determined by Lr/ΔL. The result demonstrates that a novel interleaver with 1∶2 asymmetric bandwidth allocation can be achieved by adjusting Lr/ΔL=1/2. This kind of interleaver will make system upgrade from 10 Gb/s to 10 Gb/s+40 Gb/s in a more simple and flexible way.
参考文献

[1] . . Interleaver technology in DWDM system[J]. Optical Fiber & Electric Cable, 2004, 1: 11-13.

[2] Li Jie, Tong Zhengrong, Meng Hongyun et al.. Theoretical study on optical comb-filter of cascaded M-Z interferometer[J]. Acta Optica Sinica, 2003, 23(1): 41~44
李杰,童峥嵘,蒙红云 等. 级联马赫-曾德尔干涉仪光学梳状滤波的理论研究[J]. 光学学报, 2003, 23(1): 41~44

[3] . Kuznetsov. Cascaded coupler Mach-Zehnder channel dropping filters for wavelength-division multiplexer optical systems[J]. J. Lightwave Technol., 1994, 12(2): 226-230.

[4] Jianyi Yang, Fan Wang, Xiaoqing Jiang et al.. Linearization of Mach-Zehnder modulator using microring-based all-pass filter[J]. Chin. Opt. Lett., 2005, 3(6): 333~335

[5] Dong Xiaowei, Pei Li, Jian Shuisheng. Characteristic analyses of series-coupled multiple-ring resonator filter[J]. Acta Optica Sinica, 2006, 26(2): 207~211
董小伟,裴丽,简水生. 集成串联环型谐振光滤波器特性的数值分析[J]. 光学学报, 2006, 26(2): 207~211

[6] . Transmission, group delay, and dispersion in single-ring optical resonators and add/drop filters-a tutorial overview[J]. J. Lightwave Technol., 2004, 22(5): 1380-1394.

[7] . . High extinction ratio Mach-Zehnder interferometer filter and implemention of single-channel optical switch[J]. Opt. Commun., 2003, 222: 191-195.

[8] Pang Fufei, Han Xiuyou, Cai Haiwen et al.. An integrated optical waveguide ring resonator by using sol-gel technology[J]. Chin. J. Lasers, 2006, 33(5): 591~595
庞拂飞,韩秀友,蔡海文 等. 利用有机-无机溶胶-凝胶方法制备平面波导环形谐振腔[J]. 中国激光, 2006, 33(5): 591~595

[9] . . A flat-top birefringent interleaver based on ring-cavity architecture[J]. Opt. Commun., 2006, 260: 311-317.

[10] Philip N. Ji, Arthur Dogariu, Lei Xu et al.. Optical tunable asymmetric interleaver[C]. OFC06, OTuM7

[11] . Heebner, Vincent Wong, Aaron Schweinsberg et al.. Optical transmission characteristics of fiber ring resonators[J]. IEEE J. Quant. Electron., 2004, 40(6): 726-730.

董小伟, 裴丽, 许鸥, 鲁韶华, 冯素春, 赵瑞峰, 谭中伟. 环形谐振器辅助马赫-曾德尔干涉仪型波长交错滤波器的研究[J]. 光学学报, 2008, 28(4): 638. Dong Xiaowei, Pei Li, Xu Ou, Lu Shaohua, Feng Suchun, Zhao Ruifeng, Tan Zhongwei. Study of Interleaver Based on Ring Resonator Assisted Mach-Zehnder Interferometer[J]. Acta Optica Sinica, 2008, 28(4): 638.

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