林清富2006-07-252018-07-052006-07-252018-07-051999-07-31http://ntur.lib.ntu.edu.tw//handle/246246/11185本研究使用一種全新的鎖模技術，稱 為自我混成鎖模。此項技術使用RF 調變， 其頻率是雷射腔頻率的一半。利用此技 術，可在適當的調變下使增益元件載子濃 度達到透明濃度以下，而倒轉為可飽和吸 收體，不需要額外使用一個可飽和吸收 體，就可以同時產生主動鎖模與被動鎖模 的機制。在相同的雷射腔中，利用自我混 成鎖模可以產生的脈衝寬度約只有主動鎖 模所產生的一半。A new mode-locking method named self-hybrid mode-locking is explored. This method uses RF modulation at the subharmonic of pulse repetition frequency. By suitable biasing condition, the carrier density inside the gain media can be lower than transparency carrier density, and the gain medium will turn into a saturable absorber. Both active and passive modelocking mechanisms operate in the same gain region without the necessity of additionally integrated absorbers. With the same cavity configuration, self-hybrid mode-locking can generate pulses about two times shorter than the traditional active mode-locking.application/pdf59118 bytesapplication/pdfzh-TW國立臺灣大學光電工程學研究所自我混成鎖模鎖模半導體雷 射Self-hybrid mode-lockingmodelockingsemiconductor laserreporthttp://ntur.lib.ntu.edu.tw/bitstream/246246/11185/1/882112M002038.pdf