我們用擴散模型來描述氫氣擴散進入和出去光纖的變化過程。在1.24微米波長的吸收波峰，被用來做為各種氫氣濃度的指標。
我們使用動態疲乏測試來探討被紫外光照射之後的光纖力學強度。不同脈衝能量密度以及總照射量的KrF和ArF準分子雷射用來照射浸氫光纖。由此，我們可以得到布拉格光纖光柵的典型中等破壞強度以及它們韋伯分布的m值。

A diffusion model is used to describe the evolution of hydrogen diffusion into and out of an optical fiber. The absorption peak centered in 1.24 m wavelength is used as an indicator for various amounts of hydrogen concentration.
The mechanical strength of UV irradiated optical fiber has been investigated by using dynamic fatigue tests. KrF and ArF excimer lasers with different pulse energy densities and total doses are used to irradiate the hydrogenated optical fibers. The typical median breaking strength of fiber Bragg gratings and their m values of Weibull distribution are obtained.

Abstract(Chinese)I
Abstract(English)II
ContentsIII
Figures ListV
Tables ListVIII
Chapter 1 Introduction1
1.1 Fiber Bragg Grating Fabrication Methods1
1.2 Photosensitivity in Optical Fiber3
1.3 Mechanical Strength of Fiber Bragg Gratings4
Chapter 2 Characterization of Hydrogen-Loaded Fiber Bragg Grating
8
2.1 Spectra of Loaded and Non-Loaded Fibers 8
2.2 Diffusion Model for Hydrogen Loading Treatment9
2.3 Fabrication of Fiber Bragg Grating14
Chapter 3 Weibull Distribution23
3.1 Fiber Weakening23
3.2 Flaw Distribution24
Chapter 4 Mechanical Strengths of Optical Fibers Irradiated by UV Light
28
4.1 Experimental Conditions29
4.2 Strength of Fibers Loaded with Various Amounts Hydrogen
Concentration30
4.3 Strength of Fibers with Various Exposure Conditions in 248
and 193 nm30
4.4 Summary32
Chapter 5 Conclusion58
References59

Chapter 1
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Chapter 2
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Chapter 3
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Chapter 4
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