本文選題：高速光通信 + 光信號處理��； 參考：《北京郵電大學》2014年博士論文

【摘要】：針對不斷增長的通信帶寬需求對光纖通信系統(tǒng)提出的大容量、高譜效率新要求,本論文以超高速光纖通信系統(tǒng)及其關鍵技術為核心開展了研究工作。 在超高靈敏度相干接收方面,論文提出并實現(xiàn)了外差相干和電延遲干涉儀構造的模擬相干接收機,成功實現(xiàn)了2.5Gbaud速率下DPSK信號無放大接收靈敏度-45.18dBm。在全光邏輯門方面,提出了QPSK全光邏輯門的概念,并利用半導體光放大器中的四波混頻效應,成功在40Gbaud速率下實現(xiàn)了QPSK信號的全光異或邏輯門。 在大容量傳輸方面,本論文以光時分復用系統(tǒng)為切入點,在研究過程中提出了解復用反饋時鐘提取技術。理論分析了時鐘強度與時分復用各支路信號分布之間關系。實現(xiàn)了單信道QPSK調(diào)制的雙偏振態(tài)640Gbit/s-400km時分復用系統(tǒng)的基頻時鐘提取,使整個時分復用系統(tǒng)達到了無誤碼傳輸。在背靠背和400km傳輸后提取的40GHz基頻時鐘時間抖動分別為31飛秒和35飛秒,逼近系統(tǒng)射頻時鐘源指標。在高譜效率傳輸方面,本論文以正交時分復用系統(tǒng)為切入點,通過國際合作,將以時域光傅里葉變換原理為基礎的時域頻域變換技術應用于正交時分復用系統(tǒng)的解復用接收。借助硬件前向糾錯模塊,完成了DPSK調(diào)制的單信道雙偏振態(tài)1.28Tbaud (2.56Tbit/s)-100km的正交時分復用系統(tǒng)無誤碼傳輸實驗。此外,本論文還通過國際合作,提出并實現(xiàn)了基于時域光傅里葉變換和頻域光傅里葉變換的新型全光正交頻分復用收發(fā)機,并在160Gbaud速率下進行了驗證實驗,實現(xiàn)了100km無誤碼傳輸。
[Abstract]:In view of the new requirement of high - capacity and high - spectral efficiency proposed by optical fiber communication system with increasing demand for communication bandwidth , this thesis focuses on the core of ultra - high speed optical fiber communication system and its key technology .

In the aspect of super high sensitivity coherent reception , this paper proposes and implements an analog coherent receiver of heterodyne coherent and electro - delay interferometer structure , successfully realizes the unamplified receiving sensitivity of the dpsk signal at 2.5Gbaud rate - 45.18dBm . In the aspect of all - optical logic gate , the concept of QPSK all - optical logic gate is put forward , and the four - wave mixing effect in the semiconductor optical amplifier is used to successfully realize the full - optical XOR logic gate of QPSK signal at 40Gbaud rate .

In the aspect of high - capacity transmission , the paper takes optical time division multiplexing ( TDM ) system as the entry point , and proposes an understanding of the multiplex feedback clock extraction technique in the research process . The fundamental frequency clock extraction of the dual - polarization state 640Gbit / s - 400km TDM system with single channel QPSK modulation is realized .
【學位授予單位】：北京郵電大學
【學位級別】：博士
【學位授予年份】：2014
【分類號】：TN929.11

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相關期刊論文 前4條

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本文編號：2093536