摘要
提出了基于光纤Bragg 光栅滤波器的全光纤波分复用传输系统模型。通过紫外光写入的方式, 在普通单模光纤上制备了光纤光栅。典型的光纤Bragg 光栅滤波器在1.56 μm 波段的反射率达99% , 带宽0.6 nm 。首次建立了全光纤波分复用传输实验系统。该系统以掺铒光纤激光器为光源, 其工作波长稳定度优于0.05 dB。全光纤型波分复用器由1 个1×4 光纤耦合器和4 个光纤Bragg 光栅滤波器构成, 信道波长间隔3.2 nm (0.8 nm ×4), 插入损耗小于7.5 dB, 串扰小于- 28
A model of all fiber wavelength division multiplexed (WDM) transmission system based on fiber Bragg gratings is proposed. The fiber grating is fabricated in general mono mode fibers by UV writing method. Typical performances of the grating fiber are 99% reflectivity and 0 6 nm bandwidth at 1 56 μm region. An all fiber WDM transmission experimental system is established in the first time in which Er 3+ doped fiber laser is taken as light sources. The stability of output wavelength is better than 0 05 dB. The all fiber demultiplexer consists of a 1×4 fiber coupler and four fiber grating fibers. The channel spacing is about 3 2 nm. The insertion loss is less than 7 5 dB and the crosstalk is less than -28 dB.
出处
《长春邮电学院学报》
1999年第4期1-6,共6页
Journal of Changchun Post and Telecommunication Institute
基金
信息产业部重点科技发展计划项目! (97027)
关键词
波分复用
光纤
传输系统
光纤通信
Wavelength division multiplexing
Transmission
Fiber Bragg grating
