本論文探討利用電吸收調變器(EAM)作為波長轉換的技術。內容主要包含基本的工作原理、波長轉換靜態與動態特性的量測，並利用DFB雷射及光纖雷射作為轉換的光源，探討多波道波長轉換對傳輸品質的影響。
在實驗量測上，工作速率達到10Gbps，探討其轉換後眼形圖的特性，波長變化後熄滅比(Extinction ratio)與Q值的影響。
在DFB雷射方面，轉換後的熄滅比在4.8 ~ 6dB；Q值大約為4。在光纖雷射方面，轉換後的熄滅比大約在3dB，時間抖動(Time Jitter)百分比大約為40%。由於整體的架構簡單，有利於全光網路上的應用，如全光式時脈回復與波長轉換。

Wavelength conversion is a key technology in all-optical networks. In this thesis, topics include basic operation principle of wavelength converter, and measurements for static and and dynamic characterisitics. The source used for electroabsorption-modulator(EAM) based wavelength converter can be DFB laser and fiber laser. Effort has been focused on the investigation of multiwavelength conversions using the above-mentioned sources.
It is shown in our experiments that the input signal wavelength can simultaneously convert to different wavelengths at 10Gbps, and the effect of operating wavelengths on the extinction ratio and the Q factor is also investigated.
For DFB laser, our results show the extinction ratio as large as 4.8 ~ 6dB and the Q factor at least 4. For fiber laser, our results show extinction ratio of 3dB and the time jitter of 40%. Owing to its simplification and versatility, the EAM has potential applications in all optical networking, such as wavelength conversion and clock recovery.

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