本論文研發目標為探討及模擬單通道傳輸速度達53 GBaud/s的電致吸收調變雷射傳輸模組，其傳輸模組之架構分為三個部分:傳輸線基板、金屬打線以及外調雷射晶片。首先，透過軟體設計及模擬100G-LR1與400G-LR4兩種規格的傳輸線基板之高頻特性，以及高速連接軟板的頻率響應和阻抗特性。接著將電致吸收調變雷射等效小訊號模型進行改良，利用曲線擬和的方法，設計出大訊號電路模型，並透過實際量測電致吸收調變雷射之頻率響應以匹配在各偏壓時的等效電路。藉由S11和S21的匹配結果得知其電路中之參數變動趨勢所對應頻率響應情況。
最後將傳輸線基板及電致吸收調變雷射等效電路之匹配結果整合成高速光傳輸模組，經由模擬其傳輸性能，以及將S11特性轉換成相對應的時域反射特性以觀察阻抗變化，並觀察S11對眼圖的影響，將結果與實際量測結果進行比對擬和，以驗證電致吸收調變雷射傳輸模組效能。經由模擬結果顯示，藉由調整電致吸收調變雷射參數可提升傳輸模組之頻率響應及眼圖結果，達成更好的傳輸品質。所建立的等效電路與分析方法可作為優化具電致吸收調變雷射的光收發器的有效工具，並可指出強化元件與模組性能的方向。

In this thesis, we investigate a high-speed electro-absorption modulated laser (EML) based transmission module to achieve a single-channel transmission speed of 53 GBaud/s. The transmitter module is divided into three parts: carrier with transmission line, metal bonding wire, and the EML laser chip. Firstly, we designed and simulated the high-frequency characteristics of the 100G-LR1 and 400G-LR4 carriers as well as the frequency response and impedance characteristics of the high-speed connection boards. Then, an improved small-signal equivalent circuit model of EML was established for matching the measured frequency response. The large-signal circuit model was developed by fitting the measured EML transfer function with a polynomial. The measurement results of S11 and S21 are used to obtain the device parameters in the equivalent circuit model for various bias voltages by matching them with the simulated frequency responses.
Finally, the simulation results of the transmission line carrier and the EML equivalent circuit are integrated into a high-speed optical transmission module. The transmission performance can be simulated with the equivalent circuit and the impedance variation can be observed by converting the S11 performance to the corresponding time-domain reflection (TDR) results. The effects of changing the device parameters on the eye diagrams can be clearly observed. The frequency response and the eye diagram of the transmission module can be improved by adjusting the parameters of the EML equivalent circuit model. The established equivalent circuit model and analysis methodology can provide an effective tool for optimizing the transmitter module with EMLs and indicate the direction for performance enhancement.

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