CAJ | 학술논문

用中心波长为850 nm，重复频率为76 MHz，脉宽为130 fs的飞秒脉冲光产生二次谐波，泵浦TEM01模的同步光学参量振荡器，实验上获得了TEM01模大约4倍的经典增益，并给出了理论分析。这是产生高阶模飞秒脉冲光非经典频率梳的重要步骤，理论预计该增益下可以得到-2.20 dB的TEM01模脉冲压缩光。
용중심파장위850 nm，중복빈솔위76 MHz，맥관위130 fs적비초맥충광산생이차해파，빙포TEM01모적동보광학삼량진탕기，실험상획득료TEM01모대약4배적경전증익，병급출료이론분석。저시산생고계모비초맥충광비경전빈솔소적중요보취，이론예계해증익하가이득도-2.20 dB적TEM01모맥충압축광。
With the ultra-short mode-locked femtosecond pulse at 8 5 0 nm,and the repetitionrates of 7 6 MHz and the pulse width of 1 3 0 fs,through a singly resonant synchronously pumped optical parametric oscillator,periodzcally poled potassium titanyl phosphate crystal pumped by the second harmonic can generate about 4 times gain for the spatial mode TEM01 .Theoretically the signal gain of the mode TEM00 is higher than that of the mode TEM01 when pumped by the mode TEM00 .This is important for the generation of the non-classical frequency combs,for it can generate about -2.2 0 dB theoretical squeezing light.