本論文中，我們利用一個脈衝塑型器來控制脈衝的頻譜相位並送入一台商用摻鉺光纖放大器進行脈衝放大，並藉此希望找尋最大的尖峰功率以及最短的脈衝寬度。理論上，當脈衝被強烈延展時，在放大過程中，非線性效應的影響將會被衰減，然而，因為我們所使用的摻鉺光纖放大器是由一條40公尺的摻鉺光纖所構成，因此非線性效應在我們的實驗中仍扮演一個相當重要的腳色，使得頻譜有強烈的拓展。在我們的實驗中，我們使用功率7.7 毫瓦、重複率8.3 兆赫、轉換極限頻寬660 飛秒的脈衝來送入我們的摻鉺光纖放大器系統進行放大，當脈衝塑型器賦予3.285 ps2的群速色散時，我們得到平均功率155 毫瓦、理想最高尖峰功率235 千瓦的放大脈衝。

In this thesis, we utilize a pulse shaper to control the spectral phase of the pulse seeded to a commercial Erbium-Doped Fiber Amplifier (EDFA) system, and seek to maximize the peak power and minimize the duration of the output pulse. In theory, nonlinear effects can be suppressed when the pulse remains highly chirped during the amplification process. However, in our experiment the EDFA is composed of relatively long EDF [40 meters] compare to typical fiber amplifiers [roughly 3-5 meters], nonlinear effects still play important roles as noticeable spectral broadening is observed. In our work, an input pulse with 7.7 mW average power, 8.3 MHz repetition rate and 660 fs transform-limited (TL) pulse width [defined by full-width at half maximum (FWHM)] is seeded to our EDFA system [with 1.5 W pump power]. Amplified pulses with average power of 155 mW [before compression] and peak power of 235 kW [after ideal phase compensation] is generated when a group delay dispersion (GDD) of 3.285 ps2 is applied to the seed pulse via a pulse shaper.

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