光学学报, 2010, 30 (s1): s100212, 网络出版: 2010-12-21
基于码分复用和波分复用的光纤布拉格光栅传感网络仿真研究
Simulation of Fiber Bragg Grating Sensing Networks Using Code Division Multiplexing and Wavelength Division Multiplexing
光纤光学 光纤布拉格光栅传感网络 码分复用 波分复用 测点编码方法 fiber optics fiber Bragg grating sensing network code division multiplexing wavelength division multiplexing measuring point coding method
摘要
采用码分复用(CDM)和时分复用(TDM)混合复用技术的光纤布拉格光栅(FBG)传感网络能大幅提升系统的复用能力，但结构复杂，动态测试性能较差，工程上不易实现。提出一种新的采用CDM和波分复用(WDM)混合复用技术的FBG传感网络结构，通过对测点直接进行二维码分多址(CDMA)编码，在不影响系统动态测试性能的同时增加了复用能力，且结构简单，便于工程实现。仿真实验表明，该结构可以在10 nm范围内布置49个测点，每个测点的量程可达10 nm。
Abstract
A fiber Bragg grating (FBG) sensing network using code division multiplexing (CDM) and time division multiplexing (TDM) increases the multiplying density, but decreases the network′s dynamic performance and is difficult to be implemented in engineering for its complex structure. A new kind of FBG sensing network using CDM and wavelength division multiplexing (WDM) by coding measuring points directly with 2D-CDMA codes is proposed, which increases the multiplying density while does not influence its dynamic performance and is easy to be implemented in engineering for its simple structure. Simulation experiment indicates that in a spectral range of 10 nm, 49 FBG sensors can be arranged in this type of sensing network, and the measuring range of every sensor reaches 10 nm.
李东升, 隋青美, 贾磊. 基于码分复用和波分复用的光纤布拉格光栅传感网络仿真研究[J]. 光学学报, 2010, 30(s1): s100212. Li Dongsheng, Sui Qingmei, Jia Lei. Simulation of Fiber Bragg Grating Sensing Networks Using Code Division Multiplexing and Wavelength Division Multiplexing[J]. Acta Optica Sinica, 2010, 30(s1): s100212.
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