The actively and passive mode-locked fiber ring laser and two types of photonic switching, slalom ( semiconductor laser amplifier loop mirror ) and uni ( ultrafast nonlinear interferometer ) were developed . this thesis presented the principle and the requirements for the optical of frequency-shift sampling module under common conditions 研制了作為光取樣脈沖源的主動鎖模和被動鎖模光纖激光器;半導體光放大器環(huán)鏡及超高速非線性干涉儀的光子開關,并進行了頻差法光取樣、異步光取樣及基于時分光取樣的光子模數(shù)轉換的實驗研究。