雙向光頻域反射與穿透技術之研究

Abstract

本文提出一雙向光頻域反射與穿透系統。此系統是由微波網路分析儀與我們所設計的光電探頭所組成。與傳統光網路分析儀相比，此光頻域反射與穿透系統可以對光待測物做快速雙向之S參數量測。我們分別運用光纖布拉格光柵與啁啾光纖布拉格光柵作為傳統光網路分析儀與我們所提出的光頻域反射與穿透系統之待測物。在此雙向光頻域反射與穿透系統的量測過程中，我們能同步地取得此兩種光纖布拉格光柵之頻率響應，而避免了傳統光網路分析儀因更換待測物量測方向時所造成的人為錯誤。

In this thesis, we propose a two-way optical frequency domain reflection/transmission system. This system is combined by a microwave network analyzer and two electrooptic probes that we designed. Comparing to a conventional optical network analyzer, the optical frequency domain reflection/transmission system can measure the S parameters of optical device under test (DUT) by quick two-way measurement. We apply fiber Bragg grating (FBG) and chirped fiber Bragg grating (CFBG) as the optical DUTs of a conventional optical network analyzer and proposed two-way optical frequency domain reflection/transmission system. During the measurement procedure, we can make the two-way frequency responses of these two types of FBG synchronous in operation by the two-way optical frequency domain reflection/transmission system. It can avoid the human error induced by putting the DUT into opposite measurement direction in a conventional optical network analyzer.