narrowing of pulse 中文意思是什麼

narrowing of pulse 解釋
脈沖壓縮
  • narrowing : 縮小性
  • of : OF ＝Old French 古法語。
  • 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. Numerical examples illustrated the spatiotemporal properties such as spectrum redshifting, narrowing and pulse distortion, etc. it is stressed that the " antibeam " behavior of ultrashort pulsed beams can be avoided, if a suitable truncation function is introduced to the initial pulse spectrum

    數值計算例說明了在色散介質中會出現譜紅移、變窄、及脈沖形變等傳輸效應，而且對初始光譜引入截斷函數可以避免「非光束」行為。
  2. In succession, the theory of chirped - pulse amplifier system is given in detail, firstly, studying from designing experimental light road and optical components to theoretical analysis, we par ' tly finished the system by ourselves. about ultr a - shoft pulse with a pulse - width of 9. 8f s and output power of 650mw and band - width of about l 20nm is output from oscillator source, secondiy, the stretching capacity of single grating four - pass stretcher is measured using abcd matrix combining collins function, and the effect of relativ e parameters to the streching ratio is also simulated. thirdly, a new type of disjunctional frequency moduiating function is provided according to the gain - narrowing and gain - saturation which are appeared in the co urse of amplification, under modulating the two effects are both controlled on some e xtent, fourthiy, the effect of ase that is often ignored by people is analyzed and the resolving methods are also given

    從光路、光學元件的自行設計到理論分析計算，初步建立了一臺實驗系統；採用abcd矩陣法結合collins公式計算了四通式單光柵展寬器的展寬量，並模擬了相關參數對展寬比的影響，對實驗具有指導意義；評價了再生放大器和多通放大器的優缺點，對放大過程中通常忽略的放大自發輻射現象（ ase ）進行了分析，並提出了相應的解決方法；針對放大過程中出現的增益窄化和增益飽和現象，對輸入種子脈沖提出了一種新的分段頻率調制函數，實現了對增益窄化效應和增益飽和效應的共同抑制；提出了系統的材料（包括放大介質和光路中的普通介質）正是融合高階色散的來源。
  3. The results show that there is gain narrowing when pump is gaussian temporal profile and it ' s pulse width close to signal ' s and that the spectrum extended in the case of saturated amplification when pump is near top - hat temporal profile

    在泵浦光為高斯時間波形且脈寬與信號光差不多時，出現增益窄化；而當泵浦光近似為時間平頂時，飽和放大后光譜增寬。
  4. To shorten charging time and improve charging efficiency, the circuit can change the charging electric current automatically according to real time voltage of the battery, and dispel the polarization phenomenon by narrowing pulse discharge in the whole course

    該電路可根據蓄電池端電壓自動改變充電電流大小，並通過全程窄脈沖放電消除了充電過程中的極化現象，縮短了充電時間，提高了充電效率。
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