本論文提出一個新的光纖網路架構，適用於多重存取(Multiple Access) 的光纖網路中，提出的架構利用極化碼(Polar Code) 優異的錯誤更正能力，以提升光纖網路的整體效能，進而達到低錯誤率的網路體驗，另一方面，透過光學分碼多重存取 (Optical Code Division Multiplexing, OCDM) 可以支援大量使用者的技術利用在本論文提出的架構上，其中我們選用頻域振幅編碼(Spectral Amplitude Coding,SAC)，除了簡化網路的建置，也由於不同碼向量之間保有正交性，可以消除多重存取干擾 (Multiple Access Interference, MAI)。
本論文提出的架構利用極化碼將數個獨立通道重新打散成各個通道容量相反成兩群的特性，然而，在極化碼架構中必須犧牲一部分的通道以完成極化碼編碼，對此，本論文提出結合光分碼網路的架構，利用光分碼多工網路具有支援大量通道以及部分使用者停滯傳輸的特性將以上兩種具互補特性的技術結合，創造效能優異的傳輸網路環境。

Novel optical network architecture is proposed, which is suitable for the multiaccess optical fiber network. The proposed architecture exploits the excellent error correction ability of Polar code to improve the performance of the whole system and build a low error rate network environment. Also, the proposed architecture can support lots of users by optical codedivision multiplexing (OCDM) technology. Among them, spectral amplitude coding is proposed. Beside simplify network construction, the spectral amplitude coding can eliminate multiple access interference.
This thesis utilizes the properties of Polar code and OCDM network. One property of Polar code is channel polarization. Due to channel polarization, the channels will divide into two opposing channel quality. In the construction of Polar code, the construction needs to sacrifice a part of channels to complete encoding. Besides, there exist bursty traffic in the OCDM network. Few users transmitting at the same time. We combine these two techniques. The proposed architecture takes both advantages of Polar code and OCDM network. Polar code reduces bit error rate and OCDM support lots of channels to improve the problem which Polar code needs to sacrifice channels.

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