摘要
近十年來，光纖科技快速的發展，使其是在通信、測量、醫學等各領域有舉足輕重的地位，其中，光纖布拉格光柵(Fiber Bragg Grating)扮演了重要的角色。大量的研究報告和文獻指出這是一個具有高度潛力的光電元件，應用最多的範疇是在光纖通訊，其法本的效應，就如同一個對波長有選擇的鏡子。另外在感測方面，由於光纖光柵對溫度、壓力、聲音、加速度有著極其敏感之特性，以致直接影響到光信號在光纖中之傳輸狀態。使得光纖光柵的應用受到諸多的重視，因此本文以光纖布拉格光柵為主，探討光和各種物理場之交互作用。我們除了分析光纖光柵的相位匹配條件、結構與溫度之問的關係式外，並介紹一種應用光纖光柵的加速度計的設計方式，以計算在應力影響下之帶拒光纖(Band-Rejection Fiber)工作波長的偏移量。加上一個馬赫－詹德干涉儀，將波長的偏移轉換成相位的偏移、由干涉儀檢測出相位變化、進而測量加速度。
並列摘要
In the last decade, the fast progress in fiber optics make it very useful in communication, measurement. medicine etc. Among them, the Fiber Bragg Grating (FBG) is a key issue. Many research reports show that this device is a potential photonic component in the near future. Most of its applications are concentrated in fiber optic communication area. It acts as a wavelength selectable mirror. Also, the fiber grating is very sensitive in detecting the temperature, pressure, sound and acceleration. These applications demonstrated that the FBG is a very good sensing device. In this paper, we explore the interaction between light and physical field by means of the Fiber Bragg Grating. We analyze the phase matched condition, the thermal effect etc. We introduce a Fiber Bragg Grating in the design of an accelerator and calculate the shift of the operation wavelength of a band-rejection fiber under the influence of We also introduce a Mach-Zehnder interferometer to measure the acceleration by means of detecting the phase.