隨著下世代網路(Next Generation Network, NGN)[1-2] 需整合傳統電信網 路(Public Switch Telephone Network, PSTN)、無線網路(Wireless Network)與網際網路(Internet)於單一網路上成為全網際網路協定(Internet protocol, IP)網路，使得網路頻寬的需求愈來愈大，光通訊的高密度分波多工(Dense wavelength-division multiplexing, DWDM)系統就是其中一種可提供有效成本效益且有更多優點的技術之一。在此情況下，控制平面(control plane)技術能夠動態的管理流量請求及平衡在各光纖鏈路、波長及交換節點的網路負載，使得這些元件的節點不會被過度使用而造成流量壅塞的可能。在一般傳統控制平面仍使用單一輸入之光波長路由裝置，本論文所提出可多重輸入之光波長路由裝置可以提供控制平面更為彈性的網路需求及較低的建置成本。
在通用多重協定標籤交換 (Generalized Multiprotocol Label Switching, GMPLS) 網路中，其主要利用高密度分波多工系統技術來提供高容量、更彈性、更可靠且更明確性的多波長通道光網路，而這些重要的機制中大部分都是利用光信號塞取多工器(optical add/drop multiplexer, OADM)和光交換連結器(optical cross connect, OXC)。
本論文研究以循環式陣列波導光柵(Array waveguide grating, AWG)和布雷格光纖光柵(fiber Bragg grating, FBG)為基礎架構，並且加入光循環器，此種架構擁有低串擾和不隨偏振擾動的特點。在此論文中，提出了利用一對NxN可循環式的陣列波導光柵(AWG)實現多組2x2的光交換連結器(OXC)，並且分析此架構的效能，實現 N/2 組的波長訊號輸入及組態這些波長訊號的路由，相對於先前技術不但成本低且網路管理彈性更大。

In response to the development of a next-generation networking (NGN), integrating Public Switch Telephone Network (PSTN), Wireless Network and Internet on the single network using the Internet protocol (IP) is needed. The requirement of the network bandwidth becomes larger. Dense wavelength-division multiplexing (DWDM) of the optical communication is an important technology which can provide many benefits. In this case, control plane technology should dynamically manage the traffic flow and balance the network load so that the nodes will not be used excessively or caused traffic jams.
In the generalized multi-protocol label switching (GMPLS) network, the main advantages of the DWDM system technology are to provide high capacity, more flexibility, high reliability, and clarity through the multi-wavelength channels for the optical network. These important features can be realized by the optical add-drop multiplexer (OADM) and the optical cross connect (OXC).
In this thesis, the multiple 2x2 OXCs based on one pair of NxN cyclic AWGs is proposed and we analyze the performances of the system experimentally. We realize inputting N/2 sets of wavelength signals and routing them. Compared to the previous technology, we increase the flexibility of the Internet requirement and lower the equipment cost.

論文審定書 i
致謝 ii
中文摘要 iii
Abstract iv
Contents v
圖目錄、表目錄 vii

1　Introduction 1
1.1　Background of Next-Generation Optical Internet. . . . . . . . . . . . . . . . . 1
1.2　The GMPLS Paradigm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3　Motivation of this Thesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.4　Structure of this Thesis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2　Overviews of OADM, ROADM and OXC systems 11
2.1　Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2　Technologies of the systems . . . . . . . . . . . . . . . . . . . . . . 11
2.3　Function of the proposed OXC . . . . . . . . . . . . . . . . . . . . . . . 22
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

3　Experimental Study of proposed OXC 27
3.1　Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.2　Experimental Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.2.1　Static setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
3.2.2　Dynamic setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.3　Experimental Results and Discussions . . . . . . . . . . . . . . . . . . . . . . .34
3.3.1　Homowavelength crosstalk . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.3.2　Static Performance . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.3.3　Dynamic performance . . . . . . . . . . . . . . . . . . . . 43
3.4　Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

4　Conclusion 54

Acronyms ix

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