線性啁啾 的英文怎麼說

中文拼音 [xiànxìngzhōu]
線性啁啾 英文
linear chrip
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  • 線性 : [數學] [物理學] linear; linearity線性代數 linear algebra; 線性方程 linear equation; 線性規劃 line...
  1. In chapter 4, the spectral characteristics and its application in optical add - drop multiplexer ( oadm ) and in multi - channel dispersion compensator of linearly chirped moir fiber grating are studied. according to the coupled - mode theory and considering the construction features, we derive the couple - mode equations that describe the mode interaction in this kind of grating

    首先從耦合模理論出發,結合線性啁啾moir光纖光柵的結構特,建立了分析線性啁啾moir光纖光柵的耦合模方程,通過數值求解耦合模方程,研究了線性啁啾moir光纖光柵的光譜特和時延特
  2. ( 4 ) finally, the ginzberg - landau equation is considered. by the ansatz method, the chirped femtosecond solitonlike solution is given, and the stability of the solutions are studied in detail by linear stability analysis with variation method. also the long - distance stability of the ultrashort pulse and the interaction between the solutions are also discussed by numerical method

    ( 4 )討論描述超短光脈沖傳輸的高階ginzberg - landau方程,給出該方程的類孤波解,並利用變分法解析地討論類孤波解的穩定,同時研究這種類孤波解的長距離穩定和相互作用。
  3. Ultrashort pulse amplification, including chirped pulse amplification ( cpa ) and optical parametric chirped pulse amplification ( opcpa ), has been becoming one of the hot researches in the field of ultrashort pulse laser technology because ultrashort and ultrahigh intensity pulse laser has important applications in high field physics, such as x - ray laser, icf, laboratory astrophysics, laser particle accelerator, and so on

    由於超短超強脈沖激光在x射激光、慣約束核聚變、實驗天體物理、激光粒子加速器等強場物理研究領域內的重要應用,超短脈沖激光放大技術目前已成為超短脈沖激光技術研究的熱點之一。它包括脈沖放大( cpa )和光參量脈沖放大( opcpa )兩大類。
  4. Under the condition that the beam is chirped, demands for soliton formation from gauss beam and the evolution equations of the beam chirp in the propagation are obtained

    我們得到了在光束具有空間的條件下高斯光束形成孤子的條件以及傳輸過程中光束的演化方程。
  5. The spectral and group delay characteristics are studied and the potential uses of this type of grating for wavelength selection and dispersion compensation are discussed. a novel scheme of oadm configuration based on linearly chirped moir fiber gratings is proposed. we have designed a lcmfg to compensate dispersions for eight channels at the same time

    在此基礎上,提出了一種新型的基於線性啁啾moir光纖光柵的光分插復用器( oadm )的結構設計方案;並設計出一種中心波長、相鄰中心波長間隔都符合itu規定的dwdm波長標準的基於線性啁啾moir光纖光柵的多通道色散補償器件。
  6. Effect of initial linear chirp on soliton pulse compression in optical fibers

    對孤子脈沖壓縮的影響
  7. From the analytical point of view, with the aid of the numerical simulation, we investigate the propagation properties of optical pulses for the nonlinear schrodinger equation in picosecond regime, the higher - order nonlinear schrodinger equation in femtosecond regime, the nonlinear schrodinger equation with varying gain / loss and frequency chirping in homogeneous optical fibers, and ginzberg - landau equation that describes ultrashort pulses in the presence of self - frequency shift, respectively

    本文從解析的角度出發,同時藉助各種微擾理論和數值分析方法,分別研究描述皮秒光脈沖傳輸的非薛定諤方程、飛秒光脈沖傳輸的高階非薛定諤方程、非均勻光纖中光脈沖傳輸的含有頻率和增益損耗項的非薛定諤方程以及描述超短光脈沖傳輸的ginzberg - landau方程的解的特,為進一步實現超高速、大容量的光信息傳輸提供一定的理論依據。
  8. The results show that wavelength locates in gain zone of semiconductor optical amplifier, and have higher peak power and proper time delay between the two pulses for the second order super gauss control pulse in semiconductor optical amplifier. a high quality amplified signal pulse can be achieved. the chirp can be reduced notability by using cascading soa in cross gain modulation based on soa, and the distance and the peak power of conversion optical pulse can be increased notability, and we can let down the demand for wavelength based on xgm in soa and enhance the flexibility of wavelength conversion

    我們應用二階超高斯光脈沖與高斯信號脈沖同時注入soa和應用soa與非光學環鏡( nolm )相結合的方案來對信號脈沖進行壓縮整形,模擬顯示,在調節系統合適參數的情況下,波長位於soa增益區的二階超高斯控制光脈沖在具有較高的峰值功率和適當時延下輸入soa時,最後可以得到放大的高質量超簡訊號光脈沖;在基於soa的交叉增益調制( xgm )全光波長轉換中,採用級聯的soa能有效地使反轉光脈沖的頻率得到有效降低,波長向下轉換的距離和反轉光的峰值能量都得到明顯提高,降低了利用交叉增益調制( xgm )波長轉換中對波長精度的要求,從而提高了波長轉換的靈和
  9. We derive an analytic expression of the group velocity dispersion ( gvd ) induced chirp and the self - phase modulation ( spm ) induced chirp in the normal dispersionregion of non - kerr - like optical fibers with saturable nonlinarity. the evolution of chirp is simulated by numerical methods. the studied results show that the more powerful saturable effects, the smaller is chirp and the gently is chirp. the net chirp is zero in the central region of the pulse

    從理論上推導出具有飽和非的非克爾光纖正常色散區內,群速度色散效應導致的和自相位調制效應導致的解析表達式.利用數值解法模擬了非克爾光纖正常色散區演變過程.研究結果表明:當非克爾光纖的飽和非增強時,凈不斷減小,而且,越來越平緩,脈沖中心附近區域凈接近零
  10. Strain measuring system based on chirped gratings and edge linear filtering demodulation technology

    光柵結合邊緣濾波解調的fbg應變測量系統
  11. The solution for nls equation in normal dispersion has been gotten, including chirped and nonlinear saturation medium effect, the solution for the influence of dark soliton by chirped and nonlinear saturation medium effect is discussed in detail

    摘要運用行波法求解正常色散區含頻率和介質非飽和效應的nls方程,並由得到的孤子解討論了和介質非飽和效應對暗孤子傳輸特的影響。
  12. The results show that linear spatial chirp upsets the balance between diffraction and nonlinearity, leading to radiation and thus destroying the condition for the formation of soliton, although it doesn ’ t affect the central

    結果表明:空間雖然對光束傳輸的中心位置沒有任何影響,但它打破了衍射與非效應的平衡,導致光束發散,從而破壞了孤子形成的條件。
  13. Effects of loss, third - order dispersion and five - order nonlinearity on chirp gaussian pulses propagation in optical fiber

    高階非效應對高斯光脈沖傳輸的影響
  14. The effect of quintic nonlinearity on evolution of the chirp of the gaussian pulse and soliton

    五次非效應對高斯脈沖和孤子演變影響的研究
  15. In this paper, the evolution equations of the parameters of the optical soliton pulses were derived by means of variational method, in order to investigate the influence of the fifth - order nonlinear effect on the transmission properties of optical soliton in the coupling fiber, and the effects of the fifth - order nonlinearity were discussed on amplitude, frequency band width, chirp, frequency, center position and phase

    摘要運用變分法導出五階非作用下孤子的參數演化方程組,研究五階非耦合光纖中孤子的傳輸特,討論五階非效應對孤子的振幅,頻寬,,頻率,中心位置及相位的影響。
  16. As a result, the peak power, pulse width and time delay of the output pulse have been investigated in detail, including the chirp of the input pulse and the linear dispersion of the filter, and some new and important conclusions have been obtained for the first time

    並分析了濾波器的色散和入射脈沖的大小對輸出脈沖的影響,對實際的光通信系統中器件參量的設計具有一定的指導意義。利用耦合模理論,對幾種典型的光纖光柵進行了研究。
  17. Therefore, fiber gratings have numerous applications in almost all the realms of optical fiber, especially in wavelength - division multiplexing ( wdm ) all - optical networks. this dissertation presents a detailed study of the following three types of fiber gratings : fiber bragg grating fabricated with cladding mode suppression fiber, linearly chirped moir fiber grating, and long - period fiber grating with rectangular index modulation

    本文以目前在wdm全光網中有良好應用前景的三種類型的光纖光柵(用包層模抑制光纖製作的光纖布拉格光柵、線性啁啾moir光纖光柵、矩形折射率調制型長周期光纖光柵)的理論和設計為研究內容。
  18. According to the different require of the phase mask, the holographic recording method for the design of linearly chirped phase mask is studied in this paper. the fringe formed by the interference of two spherical waves, whose density varies linearly with space, is used to record the chirped phase mask. the two design schemes proposed in this paper are analyzed and compared, and the experimental results are given

    根據光纖光柵掩模的不同要求,研究討論了用全息干涉方法製作線性啁啾位相掩模的設計方法,提出用兩球面波干涉產生條紋密度隨空間距離變化的干涉條紋記錄位相光柵,分析比較了文中給出的兩種設計方案,給出了實驗驗證結果,並且製作了線性啁啾光刻膠掩模。
  19. The diffraction efficiency of phase mask is discussed by using rigorous coupled - wave theory. the results are useful for fabrication of phase mask. and the diffraction efficiency of linearly chirped phase mask is discussed, it presents require of ion - beam etching

    利用嚴格耦合波理論對光纖光柵相位掩模的衍射效率問題進行了深入研究,以達到指導光纖光柵相位掩模實際製作的目的,並且研究了掩模的衍射效率問題,為線性啁啾光刻膠掩模的離子束刻蝕提出了要求。
  20. Based on the coupled mode theory, the reflect spectrum of ofbg is derived. the influenced of grating length, coupling coefficient and chirp coefficient to the maxium reflectivity and reflection bandwidth of ofbg are discussed in details. we find that under weak couple conditions ( the couple coefficient k < 1 ), the reflect spectrum of an ofbg approximately has a characteristic of sa2 ( x ) shape, which matched to the power spectrum of an optical communication signal

    本文在利用耦合模理論對均勻及線性啁啾變跡光纖光柵( ofbg : opticalfiberbragggrating )的反射譜進行分析的基礎上,發現弱耦合條件下(耦合系數1 ) ,均勻ofbg的反射譜具有類似與sa ~ 2 ( x )函數的分佈特,從而創新提出利用ofbg對光纖通信系統中光放大器的ase噪聲進行匹配光濾波的設想。
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