週期漸變光纖光柵之模擬、製作與應用

Abstract

在本論文中我們研究了週期漸變光纖光柵的理論、製作及應用。理論上我 們利用耦合模方程式模擬了光柵鐘形化(apodization)對光纖光柵特性的 影響以及因耦合到輻射模所造成的穿透頻譜變化。在實驗上我們使用週期 漸變相位光罩實際製作出具有高反射率的週期漸變光纖光柵，然後應用此 週期漸變光纖光柵來作色散補償及穿透式窄頻濾波器。我們也利用光纖光 柵製作出窄頻的光纖雷射，藉由調變光纖光柵的週期我們可自由改變光纖 雷射的出波長。 In this thesis we study the modeling, fabrication and application of chirped fiber gratings. In the theoretical side we used the couple-mode equations to simulate the effects of apodization and radiation-mode coupling. In the experiment side we have fabricated high-reflectivity chirped fiber gratings using the chirped phase mask approach. These chirped fiber gratings are then used as dispersion compensators and narrow- linewidth transmission filters. Finally, we also use fiber gratings to build tunable narrow-linewidth transmission filters. Finally, we also use fiber gratings to build tunable narrow- linewidth Er-fiber lasers.