環形諧波鎖模光纖雷射之研究與應用

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放入半導體光放大器於架構中以達到振幅鎖模與脈衝穩定的效果，之後我們再利用相位調變器外加調變信號使其共振腔內部的縱像模態做相位的鎖模，最後使用外加信號激發極化鍵控調變器利用極化的變化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，脈衝重複率、脈衝抖動、上升時間的影響。

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 SOA in the fiber ring cavity system to stable the output high speed pulse train. Then we also generate phase modulation by exciting outside RF signal to make the phase longitudinal modes locking. At the last, we utilize polarization shift keying technique 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 analyze the repetition rate, RMS jitter, and rise time, respectively.