picosecond pulse 中文意思是什麼

picosecond pulse 解釋
微微秒脈沖
  • picosecond : 百萬分之一微秒
  • pulse : n 1 脈搏;有節奏的跳動;【動物;動物學】脈沖(波);脈動。2 意向;傾向。3 【音樂】拍子,律動。vi ...
  1. Development of picosecond pulse radiolysis system at waseda university

    早稻田大學皮秒脈沖輻解裝置
  2. We apply the agrawal ' s theory model of soa, and study the temporal characteristics of the output pulse for input picosecond optical pulses with different sharpness edges passing through a semiconductor optical amplifier, and find that the peak power and the pulse width of the output pulse depend on the input pulse peak power, the sharpness degree of the input pulse edge and the bias current of soa

    本文應用agrawal的關于soa理論模型,詳細研究了具有不同陡峭邊沿的皮秒超高斯光脈沖經soa后的時域特性的變化,發現輸出脈沖的峰值功率、脈沖寬度與輸入脈沖的峰值功率、輸入脈沖邊沿的陡峭程度以及soa的偏置電流密切相關。
  3. Three shaped profiles ( parabola, linear, and exponential ) have been considered. the exponential dispersion profile fiber loop is optimal for the propagation and compression of picosecond pulse. on the contrary, the parabola dispersion profile fiber loop is optimal for femtosecond pulse due to the high order effects such as the third order dispersion ( tod ), stimulated raman scattering ( srs ) and self steeping ( ss )

    ( 3 )研究不同色散遞減類型(拋物線遞減、線性遞減、指數遞減)光纖構成的環形腔中傳輸的特性,發現其色散曲線為指數遞減型光纖有利於皮秒光脈沖的傳輸與壓縮;而對于飛秒脈沖,由於三階色散( tod ) 、脈沖拉曼自散射( srs )及自變陡( ss )等高階非線性效應的影響,情況恰恰相反;色散曲線為拋物線遞減型的光纖構成的光纖環最有利於脈沖傳輸與壓縮。
  4. From three - wave coupling equations, the optimal crystal length, conversion efficiency and parametric light pulse width are computed numerically when clbo is used in picosecond optical parametric amplification. the results present that clbo are suited for optical parametric amplification in short wave band. in order to get higher conversion efficiency, the crystal length should be optimized according to the intensities of pump and signal waves

    從三波耦合方程出發,對clbo用於皮秒級光參量放大時,最佳晶體長度、轉換效率和參量光的脈沖寬度進行了理論分析和數值模擬,結果表明clbo晶體適合在短波范圍作光參量放大,為達到高的轉換效率和窄脈寬的信號光輸出,泵浦光和初始入射信號光的強度應根據晶體長度取最優化值。
  5. Effect of initial chirp on soliton - effect picosecond pulse compression in optical fibers

    初始啁啾對皮秒脈沖孤子效應壓縮的影響
  6. A method to improve the quality of soliton - effect compression of picosecond pulse in loss fibers

    一種改善損耗光纖中皮秒脈沖孤子效應壓縮效果的方法
  7. Effects of initial chirp and fiber loss on soliton - effect picosecond pulse compression in optical fibers

    初始啁啾和光纖損耗對皮秒脈沖孤子效應壓縮的影響
  8. The effect of various gain coefficient on soliton - effect picosecond pulse compression in fibers with slowly decreasing dispersion

    色散緩變光纖中增益系數的取值對皮秒脈沖孤子效應壓縮的影響
  9. In the picosecond and femtosecond time field, the durations of the pump and signal pulses are so short that special propagating characteristics of ultrashort pulse laser should be taken into account, especially the pulse broadening induced by the group velocity mismatch and the group velocity dispersion

    在皮秒和飛秒時域,由於泵浦光與產生的信號光的持續時間特別短,故在討論超短脈沖與物質相互作用時必須計及超短脈沖在介質中傳輸的特殊性質,尤其是群速失配與群速色散引起的脈沖展寬。
  10. Agrawal ' s theory model of soa ca n ' t simulate accurately the amplified signal pulse shape in soa when the pulse width is as short as several picosecond. so we simulate accurately the peak power, full width half maximum, rising time and falling time of amplified pulse after considering the gain compression, gain asymmetry, gain shift, gain variable with situation and time. with ultrahigh velocity dense wavelength division multiplexing ( dwdm ) and optical time division multiplexing ( otdm ) developing, we demand more and more short signal pulse and more signal channels

    但當信號脈沖的寬度只有幾個皮秒時, soa傳統的agrawal理論模型已經不能完全準確地模擬soa對信號脈沖的放大情況,在此基礎上,我們在全面考慮soa的增益壓縮、增益非對稱和漂移、增益隨位置和時間變化的載流子壽命等物理機制的情況下,對皮秒超短高斯信號光脈沖經soa放大后的脈沖的峰值功率、脈沖半值全寬度、脈沖的上升時間和下降時間等重要物理參量進行了準確模擬和詳細研究。
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