本論文的目的是由為了研究光交叉連接器技術與系統設計分析，以及於光傳輸網路的應用，藉由光交叉連接技術的文獻探討與分析，瞭解不同光交叉連接技術的工作方式與特性，並且由文獻探討中得知相關類型光交叉連接器技術需要複雜的半導體技術或者製作方式，而且對於系統控制面及使用方面，必須有較多的考量。對於光交叉連接器的設計與分析而言，由2x2的基礎架構開始討論分析與實驗，再往NxN的架構探討其光交換特性，更提出利用一小段EDF加入光交叉連接器中，對系統插入損失進行補償，以提升輸出信號的輸出結果。又因為不同信號在光交叉連接器傳遞的光路徑不同，因此不同輸出端的信號準位會有所不同。為了讓輸出準位輸出結果能夠均勻化，可以於各輸出端加上可調式衰減器及濾波器來進行功率等化，預期光交叉連接器能於不同架構及不同光路徑下每個輸出準位皆能達到功率等化的結果。並於探討過程中發現對於架構設計時，若使用埠位數較高一階的光循環器可簡化所設計的架構。再將所設計之FBG based OXC以節點化的方式加入網路中應用。從網路系統的觀點來看，組成網路的最基本元件(NE)為單一設備節點。且OXC節點對於SDH及DWDM網路而言非常重要，也期望所設計的架構其未來的功能與商用OXC相同。利用目前工作所使用的商用OXC系統，並提出測試架構來探討分析與SDH及DWDM網路的應用，再與ITU-T國際電信組織標準相互應證功能。

In this thesis, we investigate, design and analyze optical cross connect (OXC) technologies. Then we apply them in optical transmission network. In the beginning, several OXC technologies are addressed and discussed. As usual, commercial OXC need be implemented by complicated semiconductor technology. It makes itself difficult to be handled via electronics and/or optical control systems. In this thesis, we propose NxN OXC by integration of Fiber Bragg gratings (FBGs) and optical circulators (OCs) to construct the optical cross connect infrastructure, Reconfigurable OXC are realized by introducing optical switches (OSWs). A piece of erbium-doped fiber (EDF) was added into the FBG-based OXC for power compensation purpose, as insertion loss is occurred by splicing loss, connection loss and interport loss. For power equalization issue, we used variable attenuators (VOAs) or FBGs of different reflectivity with filters to equalize the output signals. The construction process of optical cross connect, there is an interesting issue that N+1 ports circulator is better than N ports circulator, because it makes the structure more simplified. Using the structure as a node to joint into true optical network is proposed by us to implement as a network element (NE) which is elementary factor for network. As above we mention the NE, OXC node application is very important for SDH and DWDM network. Furthermore, the functionality of FBG based OXC structure will the same as commercial OXC in the future. We also proposed the testing infrastructure and interconnection for commercial OXC to meet international organization standard.

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