本論文架構了一套包含脈衝整型系統來提供啾頻控制的泵-探量系統，並且在改變聚焦鏡以大幅提升激發光的能量密度來做能量密度的相關性量測。同時，利用泵-探量技術來量測飽和布拉格反射鏡在高、低能量激發和不同啾頻、不同波長的脈衝，來進行量測，得到反射率、脈衝寬度和振幅比值的改變，藉由此量測來研究飽和布拉格反射鏡，對不同能量、啾頻和波長的相關性，瞭解在這些因素下的載子動力學對鎖模之貢獻，並對鎖模共振腔設計中透過色散的分配提出可增強鎖模力量的觀點。
　　由實驗結果顯示，飽和布拉格反射鏡在啾頻 -25000 fs^2、光能量密度增大（2 ->12 μm/cm^2 ）的時候有比較短的快速載子生命期和比較小的振幅比值，印證了脈衝整形因子在實驗結果上，有較強的脈衝壓縮力量，這些都顯示出啾頻 -25000 fs^2 有最有效率、最穩定的鎖模調控條件；而能量密度越接近飽和能量密度的三倍時顯示出來也有較好的調控結果，這也提供了最佳鎖模使用的能量密度條件。另外比較波長 800 nm 和 780 nm 實驗結果， 800 nm 比 780 nm 對鎖模有較小的快速載子生命期和較小的振幅比值，我們認為在扭曲式飽和布拉格反射鏡（ Strained Staurable Bragg Reflector ），波長 800 nm 比 780 nm 容易鎖模且產生的脈衝寬度也比較短。

In this thesis, a chirp-controlled pump-probe system has been developed to investigate the role of chirp in mode-locking mechanism. By modulating pump power and focusing condition, power, chirp, and wavelength dependent transient reflectivity ( ΔR /R), pulse duration, and amplitude ratio in pump-probe measurement for the multiply-strained-quantum-well saturable Bragg reflector (SSBR) are presented. According this study, one can find a more efficient and stable mode-locking mechanism through proper chirp arrangement inside cavity.
Compared to the case of transform-limited pump condition, shorter fast-carrier-lifetime and smaller amplitude ratio of slow and fast relaxation contribution are observed in negative chirp excitation condition. Meanwhile, we can see that there is a shorter fast-carrier-lifetime and a smaller amplitude ratio in case of excitation pulse with -25000 ( fs^2 ) chirp or increasing fluence （2 μm/cm^2->12 μm/cm^2 ）. The results show that the pulse compression strength is stronger in -25000 ( fs^2 ) chirp and full with the tendency demonstrated by pulse shaping factor. All of these experimental results show that -25000 ( fs^2 ) chirp is the best chirped control condition to make mode-locking more efficient and stable. In addition, with the increasing fluence （2 ->12 μm/cm^2 ）, three times of saturable fluence, a more stable and efficient mode-locking condition is expectable.

摘要 III
ABSTRACT V
目錄 VIII
第一章　緒論 1
1.1　引言 1
1.2　研究動機與構想 3
第二章　飽和布拉格反射鏡在鎖模雷射應用和原理 6
2.1　鎖模雷射原理 6
2.1.1　主動式鎖模 6
2.1.2　被動式鎖模 9
2.2　飽和布拉格反射鏡簡介 14
2.3　飽和布拉格反射鏡的脈衝整形因子 20
第三章　泵－探量測技術系統和脈衝整型系統原理 23
3.1　脈衝整型系統 23
3.1.1　脈衝整型系統原理和架構 23
3.1.2　自相關儀和互相關儀簡介 28
3.1.3　啾頻控制 32
3.2　時間解析反射式泵探量測原理簡介和系統架構 34
3.2.1　時間解析反射式泵-探量測原理簡介 34
3.2.2　時間解析反射式泵-探量測系統架構 41
3.3　實驗步驟 47
第四章　不同激發能量密度實驗結果與分析 49
4.1　理論分析 49
4.2　不同激發能量密度下，反射率的變化 55
4.3　不同激發能量密度下，載子生命期的變化 65
4.3.1　快速載子生命期 67
4.3.2　慢速載子生命期 71
4.4　不同激發能量密度下，振幅比值的變化 75
第五章　不同波長實驗結果與分析 81
5.1　理論分析 81
5.2　不同波長下，反射率的變化 83
5.3　不同波長下，載子生命期的變化 86
5.3.1　快速載子生命期 86
5.3.2　慢速載子生命期 90
5.4　不同波長下，振幅比值的變化 93
第六章　結論與未來展望 97
參考文獻 99

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