以鎖模光纖雷射在光纖上同時傳遞微波和光波頻率標準之研究

Abstract

鎖模雷射已經廣泛的應用在光頻率計量上，此論文即是研究利用鎖模光纖雷射在光纖上同時傳遞微波和光波頻率標準。論文中，實驗架構最主要分成兩個部分，第一部份是在光纖上利用鎖模光纖雷射傳遞微波頻率標準，鎖模光纖雷射輸出的微波頻率標準，頻率穩定度在積分時間為1秒時可以達到1.9x10-13，經過連接工研院及清華大學間的1.5 km光纜傳遞微波頻率導致頻率不穩定度約為10-14(積分時間為1秒時)；第二部分即是在光纖上利用鎖模光纖雷射傳遞光波頻率標準，頻率穩定度在積分時間為1秒時可以達到7.5x10-15。

Mode-locked lasers have large applications to optical frequency metrology. In this thesis, I study on simultaneously transferring microwave and optical frequency standard through optical fiber using a mode-locked fiber laser. The experiment is divided into two parts. The first part describes the transferring microwave frequency standard through optical fiber using a mode-locked fiber laser, the instability at 1 s for the output of the microwave frequency standard with the comb itself is about 1.9x10-13. The instability for transfer of microwave frequency standard with the comb through CMS-NTHU 1.5km-long fiber cable causes about 10-14 for a 1 s averaging time；The second part describes the transferring optical frequency standard through optical fiber using a mode-locked fiber laser, this provides an instability at 1 s of 7.5x10-15.