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研究生:陳威年
研究生(外文):Wei-Nien Chen
論文名稱:多模光纖微波傳輸系統性能提昇
論文名稱(外文):Improvement of a Radio-on-MMF Transport System Performances
指導教授:呂海涵呂海涵引用關係曾世杰曾世杰引用關係
口試委員:林恭如黃振發
口試日期:2006-06-21
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:光電工程系所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2006
畢業學年度:94
語文別:中文
論文頁數:59
中文關鍵詞:外部光注入微波光纖 (ROF)微波多模光纖垂直共振腔面射型雷射 (VCSEL)互調失真 (IMD)三階互調失真 (IMD3) 抑制
外文關鍵詞:external light injection techniqueradio on fiber (ROF)radio on multimode fibervertical cavity surface emitting laser (VCSEL)intermodulation distortion (IMD)third-order intermodulation distortion (IMD3) suppression
相關次數:
  • 被引用被引用:1
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  • 下載下載:5
  • 收藏至我的研究室書目清單書目收藏:1
在本論文中,我們使用外部光注入與互調失真抑制技術,來提升微波多模光纖系統的傳輸效能。
首先,ㄧ個微波多模光纖系統建構在1.55 μm垂直共振腔面射型雷射 (VCSEL) 與一個外部光注入技術上,可以獲得較低的錯誤向量 (EVM)、三階互調失真對載波比 (IMD3/C) 與誤碼率 (BER),而在微波多模光纖系統中使用VCSELs當光源是非常具有吸引力的,因為VCSELs有製造簡單與低價格的優點。接著我們在ㄧ個全雙工微波光纖 (Full-Duplex ROF) 環型網路上,使用低偏壓的電吸收調變器 (EAM)、射頻 (RF) 預放大器、分波多工 (WDM) 與光塞取多工 (OADM) 技術來探討互調失真的抑制,在全雙工微波光纖 (Full-Duplex ROF) 環型網路中利用這些互調失真抑制技術,也可獲得較低的三階互調失真對載波比 (IMD3/C) 與誤碼率 (BER)。最後,這個微波多模光纖傳輸系統使用1.55 μm垂直共振腔面射型雷射 (VCSEL) 注入鎖模與三階互調失真 (IMD3) 抑制技術,不但實現了最好的三階互調失真對載波比 (IMD3/C),而且也獲得較低的誤碼率 (BER),其信號品質在接收端依照IEEE 802.11a的要求,為5 GHz/54 Mbps的資料信號,這樣的微波多模光纖傳輸系統適合應用在短距離的毫米波段光纖網路上。
In this thesis, we propose external light injection technique and third-order intermodulation distortion (IMD3) suppression technique to improve radio on multimode fiber system performance.
First, a radio-on-multimode fiber (MMF) system based on 1.55μm vertical-cavity surface-emitting lasers (VCSELs) and an external light injection technique. Low error vector magnitude, third-order intermodulation distortion to carrier ratio, and bit-error-rate values were obtained. Using VCSELs as optical sources in radio-on-MMF systems are very attractive, as they are relatively simple to fabricate and potentially low cost.
Second, a full-duplex radio-on-fiber (ROF) ring network based on electroabsorption modulator (EAM) low bias voltage, RF amplifier predistorter, wavelength division multiplexing (WDM), and optical add-drop multiplexing techniques is discussed with intermodulation distortion suppression. Low third-order intermodulation distortion to carrier ratio (IMD3/C) and bit error rate (BER) values were obtained in these intermodulation distortion techniques.
Finally, a radio on multimode fiber (MMF) transport system based on 1.55 μm vertical cavity surface emitting lasers injection locked and third-order intermodulation distortion (IMD3) suppression techniques is proposed and demonstrated. Not only excellent performance of third-order intermodulation distortion to carrier ratio (IMD3/C) was achieved, but also low bit error rate (BER) was obtained. Signal quality at the receiving site meet the IEEE 802.11a demands, with a data signal of 5 GHz/54 Mb/s. Such a proposed radio on MMF transport system is suitable for the short-haul microwave optical link.
中文摘要 i
英文摘要 ii
誌謝 iv
目錄 v
圖目錄 vii
表目錄 ix
第一章 緒論 1
1.1前言 1
1.2研究動機與目的 2
1.3論文結構 4
第二章 原理介紹 5
2.1微波光纖 5
2.2微波多模光纖 7
2.3互調失真及動態範圍 11
2.4外部光源注入技術 14
2.5誤差向量振幅 19
2.6誤碼率 21
2.7IEEE802.11a 21
第三章 微波多模光纖系統建構在VCSEL與外部光注入技術 25
3.1簡介 25
3.2實驗架構 26
3.3實驗結果與討論 28
3.4結論 33
第四章 全雙工微波光纖環型網路的互調失真抑制 34
4.1簡介 34
4.2實驗架構 35
4.3實驗結果與討論 38
4.4結論 42
第五章 增進IEEE802.11a系統在微波多模光纖上的應用 43
5.1簡介 43
5.2實驗架構 44
5.3實驗結果與討論 46
5.4結論 51
第六章 結論 52
參考文獻 54
發表論文 59
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