閾值增益 的英文怎麼說

中文拼音 [yùzhízēngyì]
閾值增益 英文
gain for threshold value
  • 閾 : 名詞1. [書面語] （門坎兒） threshold; doorsill2. （界限; 范圍） threshold
  • 益 : Ⅰ名詞1 （好處） benefit; profit; advantage 2 （姓氏） a surname Ⅱ形容詞（有益的） beneficialⅢ動詞...
  1. The gain is now well above the (lowered) oscillation threshold.

    此時，增益大大超過（降低了的）振蕩閾值。
  2. In this thesis, we demonstrate the study of si - based light emitting materials and its importance in si - based photonics integration. we discussed mainly the gain, differential gain, threshold current of si - based quantum - dot laser and the dependence of threshold current on temperature from discrete energy level of three - dimension confined quantum - dot and state density distribution of 5 - function

    本文闡述了si基光發射材料的研究進展及它在硅基光電子集成中的重要地位，從三維受限量子點的分立能級和函數狀的態密度分佈入手，著重討論了si基量子點激光器的增益、微分增益、閾值電流及閾值電流的溫度特性。
  3. The designed circuit includes amplifier - filter circuit, agc circuit and floating threshold setting circuit mainly

    設計的電路主要有放大-濾波電路、自動增益控制電路和浮動閾值電路。
  4. 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。
  5. In this paper, micro - cavity semiconductor laser ( mcsl ) with pillar vertical - cavity surface - emitting structure ( vcsel ) which has potential applications in optical communication and optical interconnect is theoretically analyzed, the calculation model that used to discuss the modal performance of rectangular columnar and cylinder vcsel with oxidized aperture is established by using vector field model. the numerical simulations in the case of cylinder structure show oscillating wavelength and threshold gain against inside and outside radius of laser, the layer refractive index and pair number of bragg mirror, thickness, position and oxidized material ' s refractive index of oxidized aperture, in detail. more practically, considering dos shell of laser as non - perfect one, or supposing that dos shell is separated from the laser, we can obtain more significative results

    本工作以矢量場模型出發，對具有誘人應用前景的柱形垂直腔面發射結構（ vcsel ）的微腔半導體激光器（ mcsl ）進行了理論分析，建立了用於分析方柱形和圓柱形結構具有氧化孔徑層的激光器的模式特性的理論模型；對圓柱形結構情況進行了數值模擬，得到了振蕩波長、閾值增益隨激光器內外半徑、 bragg反射鏡層折射率、周期數以及氧化孔徑層厚度、位置和氧化物折射率的詳細變化規律；為使理論計算更接近實際，將外加金屬包殼視為非理想導體，或將金屬包殼與激光器結構隔開，分別對這兩種情況下的結果進行了討論。
  6. At the same time, an automatic gain control and floating threshold setting intelligent detecting and processing method based on linear ccd is proposed, and the disposal and transform of ccd video signal is carried out by hardware and software

    提出了一種基於線陣ccd的自動增益控制和浮動閾值的智能信號檢測與處理方法，用硬體和軟體實現了對ccd視頻信號的進行處理和變換。
  7. In chapter 4, we study nonlinear theory of the open v - type system with two - color incoherent pump. in this chapter, we discuss the conditions for the onset of lwi and the stability of the system in the limit of strong driving field, and the effect of incoherent pump rate rt on the gain, dispersion and population differences. we also discuss the effect of nonlinearities and the effect of pumping rate threshold of the pumping field

    接著第四章討論雙色非相干泵浦系統的非線性理論，分析了強驅動場情況下的lwi產生的條件和穩定性、非相干泵浦速率r ~ 1對增益、色散和粒子數差的影響；討論了該系統的非線性效應和非線性對非相干泵浦速率r ~ 1與r閾值關系的影響。
  8. The analyses given in this paper to quasi - three - level for 946 nm laser are complete. the relation between 946 nm laser transmission and optimal crystal length has been derived from the rate equations describing the population inversion and the photon density in the laser cavity in the steady - state case. the minimal claims to coating have been given on the base of contrasting 946 nm transmission with 1064 nm transmission in the condition of different cavity losses and how the pump beam radius in the laser crystal and optimal crystal length affect the laser threshold and output power of 946 nm laser has been given as well

    對產生946nm譜線的準三能級結構給出了較為完整的分析，利用激光諧振腔處于穩態時的速率方程，導出了準三能級nd ： yag946nm起振時，透射損耗與最佳激光晶體長度的關系，在與1064nm透射損耗相比較的基礎上，給出了不同的腔損耗情況下的最低鍍膜要求，並且給出了激光閾值、輸出功率和最佳激光晶體長度及泵光光斑大小的關系，這為設計室溫下高效運轉的946nm激光器的提供了理論基礎，這種分析方法對研究此類低增益，準三能級或三能級激光系統輸出特性有借鑒意義。
  9. Based on these analyses, we see that the si - based quantum - dot laser has higher gain and differential gain, its threshold current is more lower and the threshold current is insensitive to temperature when si - based quantum - dot laser compares with normal semiconductor laser and quantum - well laser

    分析表明，與普通激光器和量子阱激光器相比， si基量子點激光器有更高的增益和微分增益，閾值電流更低，閾值電流對溫度更不敏感。
  10. The study of srs in non - linear optic fiber by simulink emphatically. the initial intensities of pump beam and stokes beam are similar, and small signal gain theory needs to amend have been pointed. srs comply with the special growth law, does not have " threshold " characteristics. lt depends not only on the intensity of pump beam but also on the intensity of stokes beam itself. even if the intensity of pump beam is weak, fhe srs effect is maybe still take place. in addition, the problem about srs effect depends on the number of channels, power in each channel and space of the channels, in a dwdm system has been studied

    並著重論述了如何利用simulink研究非線性光纖光學中的受激喇曼效應，指出在光纖通信的情況兩個光束的初始強度相差不多時，小增益理論需要修正。 srs遵從特殊的增長規律，並不具有「閾值」特性。 stokes束的增長不僅依賴于泵浦波的強度，而且也和自身的強度有關系。
  11. In the section of theory, we mainly studied optical parameter effect, discussed physical mechanism of optical parameter laser and normalized coupled wave equation and got the solution. we also carried out the analysis of gain mode of optical parameter oscillation, studied the threshold condition, analyzed output characteristics and then achieved characteristic curve

    本文理論部分主要作了有關光參量效應方面的研究，探討了光參量振蕩器的物理機制、參量振蕩的歸一化耦合波方程，求解得到了參量振蕩器的耦合波函數，同時對光參量振蕩的增益模式進行了分析，研究了使參量振蕩的閾值條件，並對光參量振蕩器的輸出特性進行了分析，得到了特性曲線。
  12. 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。
  13. 4. the results indicated that the applied nitrogen amount had a quadratic curve relation with grain yield. yield and profit increased with the amount of nitrogen applied under a certain amount of nitrogen

    田間試驗結果表明，施氮量與產量呈二次曲線關系，在一定的施氮量范圍內，產量和經濟效益都隨施氮量增加而提高，超過施氮量閾值，增加施氮量，產量和經濟效益下降。
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