臺灣博碩士論文加值系統

　　在本文中，提出一種簡單創新的可調式色散補償結構，利用一種對均勻型光纖光柵的封裝設計，在保持原始中心波長的情況下可獲得最大約16.75nm的頻寬。此一裝置的操作機構主要是利用對封裝入光纖光柵的彈性長形平板進行一個S型的彎曲，而S型結構的二邊分別有其彎曲並對封裝於其上的光纖光柵做不同程度的拉力作用，其中一邊的彎曲是對光纖光柵做一個拉伸的動作，而另一邊則是壓縮。由於這樣的機制可以使得這個裝置可以被利用在光纖通訊上並可對其光學訊號進行色散補償，也可以利用在光纖感測器上。
　　另外本文還提出另一種新的光纖光柵封裝設計並結合上述彎曲結構，以實現中心波長飄移的控制，如此可以增加結構的使用方便性和降低使用成本。

A tunable chirped fiber grating by using a simple, novel and small size packaging design of a uniform fiber grating is experimentally demonstrated with the maximum tunable bandwidth of 16.75 nm in the case of keeping the grating center wavelength in the original wavelength with a linear group delay. The operation mechanism of this device is based on the different S-shape bending curves of packaging metal-strip to strain the half of grating and simultaneously to compress the other half grating. This device can be used in the application to optical communication for the dispersion compensation and optical fiber sensors.
In addition, we also proposed the other structure for wavelength shift control. It can increase the range of compensation, and effectively reduce the cost and increase the convenience.

摘要..................................................................................................................i
Abstract...........................................................................................................ii
誌謝................................................................................................................iii
目錄................................................................................................................iv
圖目錄...........................................................................................................vii
表目錄.............................................................................................................x
縮寫符號對照表............................................................................................xi
第一章.............................................................................................................1
1.1 研究動機.............................................................................................1
1.2 研究目的.............................................................................................1
1.3 本文架構.............................................................................................1
第二章 光纖光柵...........................................................................................3
2.1 光纖.....................................................................................................3
2.2 光纖光柵簡介.....................................................................................5
2.2.1 光纖光柵寫製方法.................................................................6
2.2.2 光纖光柵種類.......................................................................12
2.3 光纖光柵理論分析...........................................................................19
2.3.1均勻型光纖光柵理論推導...................................................19
第三章 光纖色散及補償.............................................................................22
3.1 引言...................................................................................................22
3.2 色散原理...........................................................................................25
3.2.1 模態間色散...........................................................................25
3.2.2 模態內色散...........................................................................26
3.2.3 極化色散...............................................................................29
3.3 色散補償原理................................................................................30
第四章 可調式色散補償器.........................................................................32
4.1 可調式色散補償器...........................................................................32
4.2 可調式色散補償器種類...................................................................32
4.3 理論分析...........................................................................................33
4.4 工作原理...........................................................................................35
第五章 封裝設計與實驗結果.....................................................................39
5.1 彎曲結構...........................................................................................39
5.2 實驗結果...........................................................................................42
5.2.1平板厚度 0.1mm..................................................................42
5.2.2 平板厚度 0.5mm....................................................................44
5.2.3 平板厚度 1mm.......................................................................46
5.3 色散量測...........................................................................................49
5.4 中心波長飄移控制...........................................................................54
5.4.1 應力與中心波長飄移.............................................................55
5.4.2 光纖光柵的封裝結構.............................................................56
5.4.3實驗架構及結果.......................................................................57
第六章 結論.................................................................................................65
參考文獻.......................................................................................................66
作者簡介.......................................................................................................70

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