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研究生:馮昭瑜
研究生(外文):FENG, CHAO-YU
論文名稱:利用分波多工機制所建構之白光照明可見光通訊系統
論文名稱(外文):A White-Lighting and WDM-VLC System
指導教授:呂海涵呂海涵引用關係
指導教授(外文):LU, HAI-HAN
口試委員:黃振發鄒志偉葉建宏呂海涵
口試委員(外文):HUANG, JEN-FACHOW, CHI-WAIYEH, CHIEN-HUNGLU, HAI-HAN
口試日期:2021-07-20
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
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:2021
畢業學年度:109
語文別:中文
論文頁數:67
中文關鍵詞:自由空間光通訊四階脈衝振幅調變偏振多工二階外部光源注入可見光通訊分波多工
外文關鍵詞:Free-Space OpticalFour-Level Pulse Amplitude ModulationPolarization Division MultiplexingTwo-Stage Light InjectionVisible Light CommunicationWavelength-Division-Multiplexing
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近年來隨著物聯網、行動通訊、電腦網路的需求急遽增加。這種現象推升對於高傳輸與高頻寬需求。 在室內環境中,可以透過白光,作為傳輸媒介,並同時提供良好的照明環境。
本論文提出分波多工(WDM)-可見光通訊(VLC)整合傳輸系統,使用二階外部光源注入和光電子回授技術的450-nm藍光雷射、520-nm綠光雷射和642-nm紅光雷射。四階脈衝振幅調變(PAM4) / WDM / 偏振多工(PDM),二階外部光源注入和光電子回授技術能有效增強雷射的頻率響應和輸出光功率,採用三波長、偏振多工和PAM4調變,能使總傳輸容量顯著提升至300 Gb/s[25-Gbaud PAM4/波長×3個波長×2個極化(p和s極化)]。透過繞射光柵,將紅光、綠光、藍光三種光源合併成白光,通過帶有雙凸透鏡的工程漫射體,提供良好的室內照明(>100 lux)。白光傳輸系統實現了良好的誤碼率與清晰的PAM4眼圖。


In recent years, demand of internet of things (IOT), mobile communications, and computer networks are dramatically rising up. This phenomenon pushes up the necessity of high transmission and high bandwidth. In the indoor scenario, white light can be deemed as a transmission medium, and provide a good lighting environment at the same time.
This essay proposes a wavelength division multiplexing (WDM)-visible light communication (VLC) integrated transmission system that uses a second-order external light injection and optoelectronic feedback technology at 450-nm blue laser, 520-nm green laser and 642-nm red light. Four-level pulse amplitude modulation (PAM4) / WDM / polarization division multiplexing (PDM), second-order external light injection and optoelectronic feedback technology can effectively enhance the frequency response and output optical power. Using three-wavelength, PDM and PAM4 modulation can significantly increase the total transmission capacity up to 300 Gb/s [25-Gbaud PAM4/wavelength × 3 wavelengths × 2 polarizations (p and s polarization)].Through the diffraction grating, the three light sources of red, green and blue are combined into white light, and the engineering diffuser with double convex lens provides good indoor lighting (>100 lux).The white light transmission system achieves a good Bit Error Rate (BER) and a clear PAM4 eye pattern.

摘要 i
Abstract ii
誌 謝 iii
目 錄 iv
圖目錄 vii
第一章 緒論 1
1.1 研究背景 1
1.1.1 光纖通訊 1
1.1.2 可見光通訊 2
1.1.3 自由空間光通訊 2
1.2 研究動機與目的 3
1.3 論文結構 3
第二章 系統元件介紹 4
2.1 半導體雷射 4
2.1.1 垂直共振腔面射型雷射 4
2.2 光被動元件介紹 6
2.2.1 光柵 6
2.2.2 分光稜鏡 6
2.2.3 偏振合光稜鏡 7
2.2.4 工程漫射器 7
2.2.5 雙合透鏡 8
2.2.6 照度計 9
2.2.7 可調極化器 9
2.3 光檢測器 10
2.3.1 PIN光電二極體 12
2.4 轉阻放大器 13
2.5 等化器 14
2.6 誤碼率分析儀 15
2.7 即時示波器 16
第三章 系統相關原理 17
3.1 調變種類和調變方式 17
3.1.1 直接調變 19
3.2 資料格式 20
3.2.1 不歸零編碼 20
3.2.2 四階脈衝振幅調變 22
3.3 多工技術 23
3.3.1 分波多工 23
3.3.2 偏振多工 25
3.4 鎖模注入技術 26
3.5 光電子回授技術 28
3.6 自由空間光通訊原理 29
3.7 資料分析 29
3.7.1 誤碼率 29
3.7.2 眼圖 30
第四章 利用分波多工機制所建構之白光照明可見光通訊系統 35
4.1 文獻回顧與實驗簡介 35
4.1.1 基於多 Gbit/s 磷光體的白光和無藍光濾光片可見光通訊和傳輸功能的照明系統 35
4.1.2 建立40-Gbit/s偏振多工在2公尺自由空間的R/G/B雷射傳輸 39
4.1.3 建構20.231Gbit/s紅/綠/藍三色雷射雙向訊號可見光通訊系統 41
4.2 實驗架構 44
4.2.1 藍綠紅光雷射外部光源注入 46
4.2.2 使用白光進行自由空間光傳輸 48
4.2.3 後端解多工與訊號分析 49
4.3 實驗結果 50
4.3.1 藍綠紅雷射光譜之分析 50
4.3.2 雷射頻率響應之分析 51
4.3.3 光柵繞射效率 52
4.3.4 照明性能之分析 53
4.3.5 誤碼率與眼圖之分析 54
4.4 結語 57
第五章 結論與未來發展 58
參考文獻 59
Publication List 63
中英對照表 65


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