約分諧波鎖模光纖雷射之研究與創新

Abstract

本文提出利用不同調變器於環形光纖雷射架構做調變，並利用振幅調變器外加調變信號對共振腔內部做振幅調變產生高速脈衝信號並加入光單向器於架構中以達到振幅鎖模與脈衝穩定的效果，降低其波型抖動程度，之後我們再利用相位調變器外加調變信號在其相同之共振腔結構內部的縱像模態做相位的鎖模，最後使用振幅調變器及相位調變器外加調變信號同時對共振腔內部做調變，以達到高速脈衝鎖模的效果。在本實驗中使用三種不同的調變器，並加調變信號加以分析，脈衝抖動改善及其在創新架構下所能達到的高速。

In this thesis, we propose a fiber ring harmonic mode-locked fiber laser and detuning modulation frequency. We generate amplitude modulation by exciting outside RF modulation signal. In case of producing high speed pulse train signal, we also drive isolator in the fiber ring cavity system to stable the RMS jitter. Then we also generate phase modulation by exciting outside RF signal to make the phase longitudinal modes locking. At the last, we utilize amplitude modulation and phase modulation to produce high speed pulse train in the fiber ring cavity system. In this fiber ring cavity system, we use three different kinds component to produce high speed pulse train and detuning the RF modulation frequency to ameliorate RMS jitter.