臺灣博碩士論文加值系統

在本論文中以電致吸收調變雷射(Electro Absorption Modulated Laser, EML)及累增崩潰光電二極體(Avalanche Photo-Diode, APD)，設計與製作出ㄧ傳輸速率達10Gb/s之高性能光收發模組，並可適用於光纖到家(Fiber To The Home, FTTH)服務之接取網路架構上。光接收模組製作部分，順利完成一具有資料與時脈回復(Clock and Data Recovery, CDR)功能之接收模組，接收靈敏度可達-25.76dBm，相較於PIN光電二極體(p-i-n photodiode, PIN-PD)增加了8dB左右。光發射模組製作部分，由於EML特性不佳及電致吸收調變器驅動電路之直流電壓輸出無法滿足需求等兩個問題，所以僅完成設計與製作，無法進行傳輸量測。同時將製作完成之接收模組應用於一40Gb/s低密度分波多工被動光網路(Coarse Wavelength Division Multiplexing Passive Optical Network, CWDM-PON)系統進行量測。此系統是將具有10Gb/s傳輸速率之四個通道，以分波多工技術匯入於單一光纖中傳輸，成為一總傳輸容量達40Gb/s之接取網路架構。經過20公里單模光纖之系統架構傳輸後，上傳傳輸各通道接收靈敏度為-17.68dBm~-18.73dBm，下載傳輸各為-22.01dBm~-22.64 dBm。配合系統末端之輸出光功率和接收靈敏度可計算出，上傳傳輸各通道至少有7.76dB以上的功率預算值，下載傳輸則為10dB以上；藉由功率預算值估算，系統之各通道可實現1：4之被動光網路架構，整個系統將可達到1：16的分流網路。

In this thesis, we designed and fabricated a high performance optical transceiver by adopting electro-absorption modulated laser (EML) and avalanche photodiode (APD). The data rate of the transceiver was up to 10Gb/s, which could apply to the optical access network (OAN) for the fiber to the home (FTTH) services. For the part of optical receiver, we successfully fabricated a receiver with the function of clock and data recovery (CDR), which the sensitivity reached to -25.76dBm and increase of about 8dB than the p-i-n photodiode (PIN-PD). The transmitter couldn’t work normally, that was due to the poor EML characteristic and the improper voltage from the EML driving circuit. Therefore, we accomplished only design and fabrication without testing transmission performance in this thesis. The receiver was applied to the transmission experiment for a 40Gb/s bidirectional coarse wavelength division multiplexing passive optical network (CWDM-PON) system. This system was an aggregated bit rate of 40Gb/s by combining four different-wavelength channels of 10Gb/s on a single mode fiber (SMF). After 20km SMF transmission, the sensitivities of upstream and downstream signal were distributed at -17.68 to -18.73 dBm and -22.01 to -22.64dBm, respectively. We calculated the power budget by the output power and the sensitivity, which were over 7.76dB for every upstream channel and 10dB for every downstream channel. By the calculation data of power budgets, 7.76dB could support four splitting optical networks. Therefore, the total splitting ratio could reach 1:16 on this CWDM-PON system.

中文摘要 --------------------------------------------------------------------------- I
英文摘要 --------------------------------------------------------------------------- III
誌謝 --------------------------------------------------------------------------- V
目錄 --------------------------------------------------------------------------- VI
圖目錄 --------------------------------------------------------------------------- VIII
表目錄 --------------------------------------------------------------------------- XII
一、 緒論--------------------------------------------------------------------- 1
1.1 研究動機--------------------------------------------------------------- 1
1.2 研究背景--------------------------------------------------------------- 2
1.3 論文架構--------------------------------------------------------------- 5
二、 研究背景簡介--------------------------------------------------------- 6
2.1 被動光網路(PON) --------------------------------------------------- 6
2.2 光纖色散特性--------------------------------------------------------- 13
2.3 10Gb/s光收發模組發展現況--------------------------------------- 16
2.4 抖動與資料時脈回復------------------------------------------------ 19
2.5 光發射次組裝模組簡介--------------------------------------------- 21
2.5.1 半導體雷射物理特性------------------------------------------------ 20
2.5.2 雷射操作特性與高速調變原理------------------------------------ 23
2.5.3 EML工作原理簡介-------------------------------------------------- 27
2.6 光接收次組裝模組--------------------------------------------------- 29
2.6.1 光電二極體特性分析------------------------------------------------ 29
2.6.2 光電二極體物理特性------------------------------------------------ 32
2.6.3 光電二極體與轉阻放大器之操作特性-------------------------- 35
三、 光收發模組電路設計與結果--------------------------------------- 37
3.1 光發射模組功能分析------------------------------------------------ 38
3.1.1 光發射次模組(TOSA)之特性分析-------------------------------- 38
3.1.2 MAX3941之特性分析----------------------------------------------- 39
3.2 光接收模組功能分析------------------------------------------------ 41
3.2.1 光接收次模組(ROSA)特性分析----------------------------------- 42
3.2.2 MAX3971A特性分析------------------------------------------------ 42
3.2.3 MAX3991特性分析-------------------------------------------------- 45
3.3 光收發電路設計------------------------------------------------------ 47
3.3.1 介面電路--------------------------------------------------------------- 47
3.3.2 光發射模組電路設計------------------------------------------------ 48
3.3.3 光接收模組電路設計------------------------------------------------ 49
3.4 高速印刷電路板佈局分析與設計--------------------------------- 52
3.4.1 高頻傳輸線設計技巧------------------------------------------------ 52
3.4.2 印刷電路板佈局技巧------------------------------------------------ 54
3.4.3 光發射電路佈局圖及完成之實體圖------------------------------ 56
3.4.4 光接收電路佈局圖及完成之實體圖------------------------------ 58
3.5 光收發模組電路特性量測與結果--------------------------------- 60
3.5.1 光發射模組量測結果------------------------------------------------ 60
3.5.2 光接收模組量測結果------------------------------------------------ 63
3.6 結果與討論------------------------------------------------------------ 69
四、 高速並列式雙向光傳輸系統架構與實驗結果------------------ 71
4.1 功率代價計算與模擬------------------------------------------------ 71
4.1.1 功率代價之起因------------------------------------------------------ 71
4.1.2 1.3μm直調架構功率代價計算------------------------------------- 74
4.1.3 1.5μm外調架構功率代價模擬------------------------------------- 78
4.2 40Gb/s 低密度分波多工被動光網路實驗架構----------------- 81
4.3 1.3um DFB雷射特性量測------------------------------------------ 84
4.4 低密度分波多工被動光網路傳輸實驗與量測結果------------ 87
4.4.1 上傳1.3µm光源之眼圖量測結果--------------------------------- 87
4.4.2 上傳1.3µm光源之誤碼率量測結果------------------------------ 90
4.4.3 下載1.5µm光源之眼圖量測結果--------------------------------- 92
4.4.4 下載1.5µm光源之誤碼率量測結果------------------------------ 95
4.5 結果與討論------------------------------------------------------------ 97
五、 結論與未來發展------------------------------------------------------ 102
5.1 結論--------------------------------------------------------------------- 102
5.2 未來發展--------------------------------------------------------------- 103
參考文獻 --------------------------------------------------------------------------- 104
附錄A 專有名詞索引--------------------------------------------------------- 108
附錄B 符號代號索引--------------------------------------------------------- 114

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