光通訊網路擁有許多優點，像是大頻寬、高傳輸速率、無電磁干擾等等。在現代的通訊環境中，因應大量資料傳輸需求以及多使用者同時傳輸，對於光網路的傳輸負載及可靠性是近年來十分熱門的議題。
在本篇論文中，我們使用光分碼多工(OCDMA)中的頻譜幅度編碼(SAC)方案來傳輸使用者的資料。SAC-OCDMA傳輸方案可以容納多個使用者同時傳輸，但不同使用者的編碼重疊會造成多址干擾(MAI)以及接收端解碼時產生的雜訊失真。本篇論文研究新的抗干擾機制以針對該問題抑制其他使用者干擾及雜訊失真並增強解碼效能。
本文中提出一種多階段的遞回干擾消除機制，該機制基於SAC-OCDMA中的相關解碼及平衡光檢測(BPD)技術。該機制透過逐級消減解碼信號並在此過程中抑制干擾及雜訊失真。在接收機的設計中我們亦結合編碼及陣列波導光柵的循環特性簡化接收機架構。
本篇論文的探討主要分為兩個部份，其一為所發展的抗干擾機制及基於所提出之機制的接收機計。而第二部分則針對所設計之接收機對於所預期之干擾消除及接收機雜訊失真抑制的效能分析。

Optical network has a lot of advantages such as large bandwidth, high transmit rate, no electromagnetic interference and so on. Due to the necessary of large data transfer and multi-user transmission, the capacity and reliability of optical network is an important issue.
In this thesis, we adopt spectral-amplitude coding (SAC) of optical code-division multiple access (OCDMA) to transmit users' data. SAC-OCDMA scheme allow multi-user transmission but the overlapping of code between different users will cause multiple access interference (MAI) and the related noise. Therefore, we proposed a novel scheme to mitigate the MAI and related noise in this thesis
We proposed a multi-stage recursive interference cancellation (RIC) scheme; this scheme is based on correlation decoding and balanced photo-detector (BPD) in SAC-OCDMA. The proposed scheme would cancel part of received signal in each stage and mitigate interference and noise. In the design of receiver, we also combine the cyclic property of code vector and array-waveguide grating (AWG) to simplify the complexity of receiver
In the study, the topic is divided into two parts. One is the interference cancellation scheme and receiver design. Another is the performance analysis about interference cancellation and noise suppression.

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