gain coefficient 中文意思是什麼

gain coefficient 解釋
增益系數
  • gain : vt 1 獲得；博得，掙得；贏得，打勝（戰爭、官司）。2 吸引；爭取…（到一邊），說服。3 （尤指通過努力...
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  1. This thesis was divided into eight chapters, and the main results and innovations obtained here can be summarized as follows : ( 1 ) the physics model of tsrs in frequency conversion crystals has been built up firstly. based on quantum - mechanical viewpoints and the following physical processes and parameters : the two - photo interaction of light with matter, paraxial diffraction of stokes, langevin noise sources, reflection at the faces and the edges of crystals, gain coefficient, beam aperture, pulse width and fluence of 3, the physics model of tsrs in kdp and kdp crystals acting as high - fluence frequency convector and the paraxial operator maxwell - bloch - langevin equations have been built up

    全文共分八章，取得的主要成果及創新點如下： （ 1 ）首次建立了諧波轉換晶體的tsrs物理模型本文根據量子力學原理，在考慮如下物理過程和參量的基礎上：光與物質的雙光子相互作用； stokes光的傍軸衍射； langevin （郎茲萬）噪聲源；晶體表面反射和端面反射；增益系數、光束口徑、脈寬和三倍頻光能量密度，推導出高通量激光在kdp和kd ~ * p諧波轉換晶體中的tsrs物理模型和空間上的近軸算符maxwell - bloch - langevin方程組。
  2. Test of gain coefficient in full aperture of a new multi - segment - amplifier

    新型陣列式片狀放大器全口徑增益實驗研究
  3. We presents a detailed studied of the linewidth of parametric light in clbo - opo caused by the linewidth of pumping beam, off axis phase matching, divergence angle of pumping, time above threshold, high gain coefficient of nlo crystal, fluctuate of cavitylength, spontaneous radiation, according to the momentum and energy conversion laws, and the sellmeier equations of the clbo, we calculated curves of the type - i and type - ii compared with the bbo ' s

    根據能量動量守恆關系和clbo的色散方程，詳細分析了由於泵浦光的線寬、泵浦光偏軸泵浦、泵浦光的發散角、泵浦光功率超過參量光振蕩閾值一定倍數、高增益系數、有效腔長波動以及自發輻射引起的參量光線寬，並得到了與bbo晶體在類、類相位匹配下比較的理論曲線。
  4. In chapter 3, we studied the effect of gaussian transverse profile for the driving and laser fields on lasing without population inversion ( lwi ) in a closed v - type system and an open v - type system. moreover, we discussed also the effect of the unsaturated gain coefficient, the cavity - damping rate, the ratio of the atomic injection rates and atomic exit rate on the corresponding systems. in chapter 4, we mainly discussed the effect of doppler broadening on the gain, dispersion and the frequency up - conversion of the open v - type lwi system and compared the differences and the same between the open system and the corresponding closed system

    發現： （ 1 ）在考慮doppler展寬的情況下，通過選取合適的實驗室條件（比如合適的原子環境溫度等）可得到合適doppler展寬值，從而使系統獲得最佳增益； （ 2 ）要想實現系統的頻率上轉換，同時又要獲得足夠強的無反轉激光增益，則系統頻率轉換比不能選取的太大； （ 3 ）對于開放系統，比較小的粒子注入速率比與退出速率對產生無反轉激光是有利碩士學位論文摘要的： （ 4 ）由於dopp1oy展寬的存在，當探測場與驅動場的傳播方向相反時，增益在探測場失諧的某一段區域產生振蕩，且振蕩的振幅、頻率失諧范圍的大小與dopper展寬的取值有關。
  5. 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
  6. Studies indicated that image distance is independent of input intensity above a certain threshold and distance between modulate plane and input plane of media, but dependent on the gain coefficient and modulation size ; the intensity of the " hot image " is independent of modulation size and distance between modulate plane and input plane of media, but dependent on the intensity of input beam and the gain coefficient

    研究表明，成像距離基本上與輸入光束的強度和調制平面到介質入射面的距離沒有關系，但是與介質的增益系數及調制細絲的尺寸有關； 「熱像」的強度與調制細絲的尺寸和調制平面到介質入射面的距離基本上沒有關系，但是與輸入光束的強度和增益系數有關。
  7. Gain coefficient of medium

    媒質增益系數
  8. Characteristics of flow - field, total pressure loss / reduction, species distribution ; parameters of reactive domain and mixing mechanism of reactant streams have been investigated. ssg ( small signal gain ) coefficient, utilization of f atom and heat release in reaction have been computed

    討論了該類噴管的流場特徵、組分分佈特點、總壓損失特徵、反應區流場參數和反應流混合機理，並對小信號增益系數、 f原子利用效率和反應放熱進行了計算。
  9. We have calculated the effects which gain and loss impose on the formation distances of filaments of small - scale modulations, the results indicate that properly increasing the gain coefficient can counteract the small - scale self - focusing in certain degree

    我們初步估算了增益和損耗對于小尺度調制的成絲距離的影響，認為適當地提高增益系數，能夠從一定程度上抑制小尺度自聚焦效應。
  10. Secondly, basing on the theory of on - off gain of small signal, the raman gain coefficient for frequency shift between 0. 5 and 20 thz of standard sigle mode optical fiber is measured by pump - probe method through a super luminescent diode ( sld ) as a broadband small signal probe source. thirdly, numerical simulation analysis of gain characteristic of raman fiber amplifier for c band wdm signal light is made according to the raman gain coefficient of the fiber measured before through target and four rank runge - kutta method. at the invariability of wavelength and maximum power of each of two pumps, schematic of powers of two pumps for best flatness on c band wdm optical gain was found out, at the same time, the factors of resulting in gain saturation is analyzed, too

    本文首先應用經典的電磁理論對拉曼光纖放大器的工作機制進行了分析，然後，根據小信號理論推導出的開關增益求出了光纖拉曼增益系數的表達式，採用泵浦-探測波的方法，利用超輻射激光二極體（ superluminescentdiode簡稱sld ）作為探測光源，測量了所用標準單模光纖頻移為0 . 5 - 20thz的拉曼增益系數，之後根據所測得的光纖的拉曼增益系數譜對應用該類光纖構成的放大c波段wdm光信號的拉曼光纖放大器的增益特性採用打靶法和四階龍格- - -庫塔進行了數值計算，在給定了兩個泵浦光源的波長和最大功率后，找出了反向泵浦情況下使c波段wdm光源增益最平坦的兩個泵浦的各自最佳功率，同時也分析了導致信號光飽和的原因。
  11. When the interaction length or gain coefficient is changed, the sbs threshold is changed, and the intensity value of optical limiting is altered

    當改變相互作用長度或者介質增益系數，即可以改變受激布里淵散射的產生閾值，進而改變輸出脈沖空間限幅的幅值。
  12. Raman fiber amplifier （ rfa ） is a kind of optical amplifier that can amplify signal light directly through nonlinear interaction of high intensity pump and signal light in fiber. whereas the spectrum of raman gain coefficient of optical fiber is not flat, the gain of signal light with different wavelength induced by a single pump is rather different, when wavelength division multiplexing ( wdm ) signal light is amplified by a single pump, the gain spectrum of the wdm signal light is not flat. the flatness of the wdm signal light has important impact on the optical signal - to - noise ratio ( osnr )

    拉曼光纖放大器（ ramanfiberamplifier ，簡稱rfa ）利用高強度的泵浦光與信號光在光纖中的非線性相互作用實現信號光的直接放大，但是由於光纖的拉曼增益系數譜很不平坦，所以同一泵浦光源對不同波長信號光的增益就存在很大的差別，因此，用單泵浦光源來放大波分復用（ wavelengthdivisionmulti - plexing ，簡稱wdm ）信號光時，各信號光的增益值就有很大差異， wdm信號增益的平坦度對光信噪比（ opticalsignal - noiseratio ，簡稱osnr ）有重要影響。
  13. As the results, firstly, some steady parameters were determined, including the gain coefficient, diffraction efficiency of the volume grating and response time t1 of twm under different total incident intensity i0, ratio of two writing beams mo, angle between two writing beams 2 and polarization conditions

    論文給出了不同寫入光強比、寫入總光強、寫入光夾角及偏振光下ce ： knsbn晶體的兩波耦合增益系數、衍射效率、響應時間的變化規律。
  14. Theoretical study of the intensity dependence of two - beam coupling gain coefficient in photorefractive crystals

    光折變晶體兩波耦合增益系數強度特性理論研究
  15. Testing method on transmittance, reflectance and emittance of flat glasses and evaluation of solar heat gain coefficient

    平面玻璃的透射率反射率輻射強度的試驗方法和太陽輻射增熱數值的評估
  16. Nudging assimulation of pw can improve prediction slightly, and increasing nudging gain coefficient play a little role in improving prediction

    Gps可降水量資料的nudging同化對可降水量預報改善較小，並且nudging系數的增加對可降水量預報效果的改善程度影響不大。
  17. The dependence of cw df / hf cl performance on the flow - field parameters in f & d2 / h2 reacting zone, which act as criterion to nozzles design, has been inversely educed on the light of original formula of gain coefficient, output power and laser efficiency

    從增益系數、輸出功率和激光效率的基本模型公式出發，逆推得到了df hf化學激光器性能對光腔中f和d 。川。反應區流場參數的依賴關系。
  18. The results also indicate that, in a piece of gain medium, the cutoff frequency, " the most quickly growing frequency " and the integral exponential gain are variables of the beam intensity, medium gain coefficient and propagation distance

    在考慮了介質的增益后，截止空間頻率、最快增長頻率以及最大增長因子不再像原始b - t理論中那樣保持不變，它成了和光強、介質增益系數及傳播距離有關的一個量。
  19. However, when the plant has uncertain parameters or the variant gain coefficient of iterative leaning control, the present method has some defects, such as lipschitz continuity of nonlinear function and the dependence of convergence analysis on actually unknown ideal input

    但當被控對象含有不確定的參數或迭代學習控制律的增益系數時變時，現有的方法存在很大缺陷，如要求非線性項滿足lipschitz連續性，控制律的收斂性分析依賴于實際上是未知的理想輸入，初值重置問題等。
  20. Both of the numeric simulations and the experimentations indicate that the c band raman fiber amplifier can be satisfied with some gain flatness when numbers and wavelengths of pump are installed while powers of pump are arranged properly. the method of measuring fiber raman gain coefficient is adopted to other type

    數值計算和試驗上都證明了在合理地選取泵浦源的個數和波長的情況下，通過對各個泵浦功率配置的調整， c波段的拉曼光纖放大器可以滿足一定的增益平坦度。
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