臺灣博碩士論文加值系統

本研究主要探討在側面與雙側面拋光之布拉格與長週期光纖光柵，拋光後之應用並可將光纖光柵與薄膜技術結合，以研製新型薄膜式光纖光柵感測元件，因光纖光柵拋光後改變光纖結構可提升感測靈敏度並應用於量測不同液體折射率，若於拋光面鍍以不同的薄膜材料，則可進行氣體及磁場感測等應用。因側面與雙側面拋光會造成光柵光譜圖的變化，本研究針對二種光纖光柵結構進行側面及雙面拋光處理，再鍍上不同的薄膜材料，以設計及製作進新型的感測元件，並經實驗確認其可行性。

The purpose of this study is the design and invention of fiber grating sensing devices based on optical coatings. We have developed novel hydrogen and magnetic fiber sensors. Single- and double-side polished fiber gratings sensors have been developed successfully. Single- and double-side polished fibers with an interesting structure can increase the sensitivities of fiber grating sensors. Moreover, they can be used to measure the refractive indices of different liquids. The hydrogen and magnetic sensors were made by different thin films. The observed wavelength of optical spectrum analyzer was shifted and related to the variations of the effective index and period of fiber gratings. The studies were focused on the design and fabrication the fiber sensors which were manufactured one-side, double-side polished fiber, fiber gratings and coated with thin films. Finally, several experiments have been done to show the feasibility for our proposed sensing device.

摘 要 i
Abstract ii
致謝 iii
縮寫對照表 ix
第一章 緒論 1
1.1 研究動機 1
1.2.1 光纖光柵 1
1.2.2 側面研磨拋光 2
1.2.3 氫氣感測器 8
1.3 研究目的 9
1.4 研究方法 10
1.5 本文架構 10
第二章 基本原理 11
2.1 布拉格光纖光柵 11
2.2 長週期光纖光柵 17
2.3 側面拋光光纖 20
第三章 實驗架構 25
3.1 引言 25
3.2 寫製布拉格光纖光柵 27
3.2.1 光柵寫製 27
3.3 拋光技術 29
3.3.1 側面拋光技術 29
3.3.2 雙側面拋光技術 32
3.4 鍍膜技術 33
3.4.1 真空蒸鍍 33
3.4.2 濺鍍 37
3.4.3 不同液體折射率感測 38
3.4.4 氫氣感測實驗 40
3.4.5 磁性感測實驗 41
第四章 實驗結果與分析 45
4.1 光纖光柵寫製結果 45
4.1.1 布拉格光纖光柵寫製結果 45
4.1.2 長週期光纖光柵寫製結果 46
4.2 光纖光柵側面拋光 47
4.2.1 側面拋光結果 47
4.2.2 雙側面拋光結果 52
4.3 不同液體折射率感測 56
4.3.1 以側面拋光布拉格光纖光柵量測不同液體折射率 56
4.3.2 以側面拋光長週期光纖光柵量測不同液體折射率 57
4.4 氫氣感測實驗 59
4.5 磁性感測實驗 60
4.5.1 以布拉格光纖光柵製作磁性感測元件 60
4.5.2 以長週期光纖光柵製作磁性感測元件 62
第五章 結論 65
參考文獻 67
作者簡介 72

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