側磨光纖順向耦合器與高階光纖光柵之量測與分析

Fiber Directional Coupler Using Side Polishing Technology And Analysis of High Order Fiber Bragg Gratings

黃國凱(Kuo-Kai Huang)

指導教授 ： 孫迺翔

共同指導教授 ： 陳建興(Chien-Hsing Chen)

義守大學/電機資訊學院/電機工程學系/碩士(2016年)

摘要

本篇論文主要分為二個部分，首先是利用工研院南分院的飛秒雷射系統製作高階光纖光柵，之後使用三套儀器進行量測，主要量測高階光纖光柵的傳輸、反射及輻射頻譜，以及探討各個光柵週期量測後所呈現的特性，再來比較在何種參數下會有共振特性，量測後我們發現光柵週期20.5μm、 21μm、22μm時相較起其他光柵週期有明顯共振特性。第二部分為使用南分院飛秒雷射系統以及屏東科技大學光纖研磨機來製作D型光纖，之後使用光學膠黏合D型光纖以製作成光纖耦合器，製作完畢後量測耦合器之耦合的效率，並了解是否會因拋光的長度與深度的不同而影響其耦合的效率，耦合器的部分，在論文中也會比較兩種方式所製作耦合器的耦合效率為何，也比較兩種製作方式的優缺點，使用飛秒雷射製作，其拋光面較平滑完整，但是使用屏東科技大學研磨機可以掌握其研磨的深度，量測的結果也會在論文中提到。

關鍵字

飛秒雷射 ； 布拉格光纖光柵 ； 拋光光纖

並列摘要

This thesis is divided into two parts. In the first part, we use the femtosecond laser systems from Industrial Technology Research Institute to fabricate high-order optical fiber gratings. The transmission, reflection and radiation spectrum of high-order fiber gratings are measured. When the grating periods are 20.5μm, 21μm, and 22μm, we can find the resonance characteristics. For example, when the resonant region is from 1539.4nm to 1540.1nm, the difference of the maximum and the minimum reflectivity is about 24dB. In the second part, the femtosecond laser from Industrial Technology Research Institute and the fiber polishing machine from the National Pingtung University of Science and Technology are used to fabricate D-type fiber. We bond two D-type fiber to produce couplers. However, very few coupling efficiencies are measured in this study.

並列關鍵字

Femtosecond laser ； fiber Bragg gratings ； side polished fiber

參考文獻

[36] 雷士慶 著，一階傾斜光纖光柵之量測與分析，義守大學電機工程學系碩士論文，中華民國103年。

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