CAJ | 학술논문

利用多抖动法对强泵浦条件下光纤放大器引入的相位噪声进行了测量.利用功率谱、积分谱对具体泵浦条件下的相位噪声特性进行定性分析,结果表明,泵浦功率越大,高频成分占的比例越大.利用结构函数定量分析相位噪声的变化特性,得出相位噪声控制系统的带宽需求指标.实验测得在71,181和230 W泵浦条件下,所需相位控制系统带宽最小值分别为830 Hz,3.1 kHz和10 kHz.
이용다두동법대강빙포조건하광섬방대기인입적상위조성진행료측량.이용공솔보、적분보대구체빙포조건하적상위조성특성진행정성분석,결과표명,빙포공솔월대,고빈성분점적비례월대.이용결구함수정량분석상위조성적변화특성,득출상위조성공제계통적대관수구지표.실험측득재71,181화230 W빙포조건하,소수상위공제계통대관최소치분별위830 Hz,3.1 kHz화10 kHz.
The phase noise in a strong pumped fiber amplifier is measured using multi-dithering method. Its fluctuation property is qualitatively characterized by the power spectral density and integral spectral density, and it is concluded that the ratio of high frequency phase noise increases with the increase of pump power. The bandwidth requirement of the active phase control system is quantificationally estimated through evaluating the structure function of the measured phase noise. The experimental measurement and analysis show that the minimum bandwidths of the system are 830 Hz, 3.1 kHz and 10 kHz under the pump powers of 71 W, 181 W, and 230 W, respectively.