激光与光电子学进展, 2015, 52 (11): 110603, 网络出版: 2015-10-15
基于Mach-Zehnder干涉仪和光纤光栅型光分插复用器
Novel Optical Add-Drop Multiplexer Based on Mach-Zehnder Interferometer and Fiber Grating
光通信 光分插复用器 Mach-Zehnder 干涉仪 光开关 optical communications optical add-drop multiplexer Mach-Zehnder interferometer optical switch
摘要
提出了一种结构新颖的基于Mach-Zehnder 干涉仪和光纤光栅的光分插复用器。它由Mach-Zehnder 干涉仪、2 个环形器和3 个光纤光栅构成,2 个环形器之间的光纤光栅起波长选择开关作用,调节光纤光栅的中心波长,可以实现光信号的上下载或直通功能,光信号上下载时通道的最大隔离度大于23 dB,同频串扰低于-40 dB,该系统不仅可以实现针对特定波长的上下载,还可以实现对上下载波长的可调谐。基于Mach-Zehnder 干涉仪和光纤光栅的新型结构光分插复用器具有结构简单、成本低、灵活性强等特点,在光纤通信波分复用系统中具有良好的实际应用价值。
Abstract
A novel optical add-drop multiplexer (OADM) based on the Mach-Zehnder (M-Z) interferometer and the fiber Bragg grating (FBG) is proposed. The OADM consists of a M-Z interferometer, two optical circulators and three FBGs. The FBG between two circulators acts as an optical switch. The OADM can add/drop one of the input multi-channels or pass the channels directly by adjusting the relative wavelength of the FBG. The channel isolation of the OADM is more than 23 dB, and the same frequency crosstalk is below -40 dB. The system can not only just download a specific wavelength, but also adjust the wavelengths of upper and lower carriers. The novel OADM has many advantages such as simple structure, low cost, good flexibility. It can be used in practical wavelength division multiplexing (WDM) system.
刘明生, 郑文华, 杨康, 李国玉, 李燕. 基于Mach-Zehnder干涉仪和光纤光栅型光分插复用器[J]. 激光与光电子学进展, 2015, 52(11): 110603. Liu Mingsheng, Zheng Wenhua, Yang Kang, Li Guoyu, Li Yan. Novel Optical Add-Drop Multiplexer Based on Mach-Zehnder Interferometer and Fiber Grating[J]. Laser & Optoelectronics Progress, 2015, 52(11): 110603.