以網狀網路為基礎之高容量光纖感測系統

High Capacity FBG Sensor System Based on Mesh Architecture

陳奕均(Yi-Chun Chen)

指導教授 ： 彭朋群

國立臺北科技大學/電資學院/光電工程系研究所/碩士(2013年)

摘要

本論文提出一種光纖感測網狀網路，具有高擴充功能與重建功能。網狀網路的架構主要由環狀與巴士狀結構所構成，利用2x2光開關連結環狀子網路，並使用4個2x2光開關組成遠端節點來連結網狀網路，而網路中的高擴充和重建功能可利用遠端節點與光開關來達成，使網狀網路在斷點發生時可重建網路，並且可使用分時多工的技術將信號分別在不同時間分送至不同的感測區域進行即時的監測，可有效提升網狀網路的感測容量。此外，結合信號平均技術及光纖環形雷射架構，以增強信噪比。實驗結果證明，所提出的光纖環形雷射為基礎的監測系統具有高擴充與高可靠性功能。

關鍵字

光纖雷射 ； 布拉格光纖光柵

並列摘要

This paper develops and investigates mesh architecture for large-scale multipoint fiber sensor networks with high capacity and enhanced reconfigurable functionality. The main trunk of the proposed sensor system is a mesh and the sensing branches comprise a series of ring subnets. The proposed mesh topology is constructed by 2x2 optical switches to link the ring-based subnets in a meshed architecture and remote node composing four 2x2 optical switches to construct the links. Moreover, the scheme of fiber ring laser cooperated with the signal-averaging technology is applied in the proposed architecture to improve the signal-to-noise ratio （SNR）. The experimental results indicate that the proposed fiber-laser-based sensor system exhibits improved reliability and capacity of the large area with multipoint architecture.

並列關鍵字

Fiber Laser ； Fiber Bragg Grating

參考文獻

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