index profile 中文意思是什麼
index profile
解釋
折射率截面-
Modes of a planar optical waveguide with fermi index profile
型折射率分佈平面光波導的模式 -
The function n(x, y)is known as the refractive index profile.
函數n（x，y）稱為折射率分佈。 -
The paper also does some deep research on the mesh characteristic of the mechanism, analyses the cause o f the cam profile error and index error during working, using object - oriented method, vc + + and pro / toolkit, performs second development to pro / engineer, completes entity proplasm of the cam mechanism using only few parameters, the press angle calculate module, error analysis module and curvature calculate module are built on the basis of it
然後通過對弧面分度凸輪加工中產生廓面誤差及工作時產生分度誤差原因的分析，建立了計算加工和分度誤差的數學模型。應用vc + +和pro toolkit對pro engineer進行二次開發，建立了弧面分度凸輪機構的參數化設計和三維造型及壓力角、誘導主曲率等運動特性和誤差分析軟體系統。 -
The optical waveguide characteristics such as waveguide mode field profile, and the mode cut - off conditions, and the waveguide dispersion are analyzed with the solution of a certain wave equation. the mechanism of index ellipsoid of linbo _ 3 crystal distorted with an external applied electric field by means of the electro - optic tensor as investigated. based on the operation principle of m - z waveguide, the operation mechanism of the two - section cascaded m - z waveguide and of the modulation electrode are
調制器的結構設計從m - z干涉型光波導工作原理出發，分析兩級串聯m - z干涉型光波導的工作原理，調制電極的工作原理，從而設計出了工作於1 . 054 m的、兩級串聯m - z干涉型光波導、行波電極linbo _ 3為強度調制器的結構參數。 -
Standard practice for computing international roughness index of roads from longitudinal profile measurements
從縱剖面測量計算道路國際粗糙度指數的標準操作規程 -
The characteristics of each rainbow for an inhomogeneous particle are studied here using lorenz - mie theory. the relation of the positions of airy peaks to each order rainbow with the profile of refractive index is simulated and discussed, which is compared with the results simulated by ray tracing theory
本文還利用lorenz mie理論分析了非均勻球粒子各階彩虹的強度和頻譜分佈特點，利用ifft方法重建了各階彩虹的強度分佈；分析研究了各階彩虹的airy峰角位置與折射率分佈的關系，並與非均勻粒子射線追跡理論的模擬結果進行比較。 -
The curve of index profile of planar waveguide was drawn by wkb method. the near field figure of channel waveguide at
並測試了632 . 8nm波長的激光通過溝道波導后的近場圖。 -
Prediction - verification method determining the refractive index profile for ion - exchange planar waveguide
確定離子交換平面波導折射率分佈的預測-校驗法 -
The tests of e - o applications by our flux ktp has been realized, the results showed : optical waveguides fabricated by using an ion - exchange process, which have an exchange - ion concentration depth profile and refractive - index profile, is close to a complementary error - function distribution, optical homogeneity and device thermal stability is much better. amplitude modulation switch formed by our flux ktp has the contrast ratio of 150 : 1 and insert loss is 2. 5 % at 1064 nm. high quality optical pulse with 1 ns width was cut successfully by using an e - o modulator from a laser pulse with 50 ns width, this modulator had run for three years, and the crystal did n ' t blackened, it showed our low conductivity flux ktp can endure high modulation voltage for a very long time
Ktp晶體的電光應用試驗表明：用離子交換法製作的電光波導，其離子交換濃度、折射率變化符合餘弦誤差函數，光學均勻性以及器件的溫度穩定性較好；製作的強度調制電光開關，消光比為150 ： 1 ，對1064nm激光的插入損耗為2 . 5 ；製作的電光調制器用於激光脈沖整形試驗，從脈沖寬度50ns的激光脈沖削出脈寬1ns的高質量光脈沖，該電光開關經過長達三年多的使用，沒有出現晶體變黑現象，說明本實驗的低電導率ktp晶體能夠耐受長時間的調制電壓。 -
The main work can be summed up as follows : firstly, we studied the thermal - field properties of vcsels, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of vcsels, and then studied the influences of the oxide - confining region with different position or thickness, and the different sizes of the gain - guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. thirdly, we realized the coupling of electricity, optical and thermal - fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, fermi levels and optical - field
具體工作可以概括如下：首先，研究了vcsel的熱場特性，分析了電流擴展，材料參數和工作條件對于溫度分佈的影響；其次，從電極電壓入手，計算出激光器中的等勢線分佈，並對不同深度處的電壓和電流分佈進行比較，研究了高阻區的不同位置和不同厚度、限制層和出射窗口半徑的大小對電流密度、載流子濃度和溫度分佈的影響；再次，實現了電、光、熱耦合，求出了閾值電壓，計算了不同偏置電壓下的電流密度分佈、載流子濃度分佈和熱場分佈，分析了溫度和載流子濃度變化對折射率、費米能級和光場的影響；最後，給出了考慮n - dbr和雙氧化限制層時激光器中的等勢線分佈，分析了n - dbr和雙氧化限制層對vcsel電流密度、載流子濃度、溫度和光場分佈的影響。 -
For many experiments, using high pureness mma, controlling polymerization temperature and polymerizing condition under high - pressure nitrogen gas and heat treatment after polymerization, a transparent preform without any bubble and blemishes was prepared. then drawing this preform, gi - pof with diameter 0. 8 - 1. 0mm was obtained. because of the limitation of the experimental conditions and the shortage of the money, it is very regretted that we ca n ' t test the index profile and the loss of the gi - pof accurately
在系統研究界面凝膠法原理和聚合機理的基礎上，通過多次實驗總結、改進，在制備過程中採用提高精餾效率、控制溫度、加壓聚合、氮氣保護和後期處理等措施，制備出無氣泡及銀紋缺陷、光潔、透明的光纖預制棒，拉絲得到直徑0 . 8 - 1 . 0mm的gi - pof 。 -
The equation is also a unified approach to the design of common trible - clad optical fibers. by genetic algorithm, the optimized refractive index profile ( rip ) of dcf is calculated to obtain maximal value of negative dispersion. this rip ensures the propagation of basic mode in dcfs
然後根據色散方程（特徵方程） ，用基因法優化色散補償光纖的負色散，得到了求得最大負色散時的色散補償光纖的光纖結構，同時保證基模在光纖中的傳輸。 -
By the similarity partition of network traffic usage space, the codebook of vq can describe the network traffic usage profile accurately and achieved the usage space index via the vq
通過相似性劃分用戶行為空間，矢量量化的碼書（ codebook ）能夠精確的描述用戶行為模式輪廓，實現了面向異常度量的網路業務量用戶行為空間索引。 -
The mode refractive index of 632. 8nm wavelength, which propagates in ion - exchanged planar waveguides, is obtained by m line technology ; the serious problems of silver film ion - exchange also be pointed out. the refractive index profile of planar waveguide is obtained with inverse wentzel - kramer - brillouin method by measured mode refractive index. finally, some improvements of silver film ion - exchange is put forward
最後介紹了銀膜電場輔助法制備光波導的試驗過程，對實驗獲得的參數進行了分析和計算，得到了波導的模折射率和折射率變化的函數曲線，隨后對在試驗過程中遇到的一些問題和現象進行了闡述，分析了其產生的原因，並提出了自己的觀點和改進的辦法。 -
Firstly, much effort is put into the theoretic analysis and numerical algorithm research. to calculate the mode profile of soi rib waveguide with jumps in the refractive index, a new full - vectorial finite - difference method ( fdm ) based on the lagrange interpolation of the field is presented
由於soi材料中作為波導芯層的硅折射率很大，與作為包層的sio _ 2之間有很大的折射率差，這勢必對模擬數值演算法的精度和邊界處理等方面提出了更高的要求。 -
To help your trip planning, details of entrance, exit and transport nodes in grid references are supplemented with an all - round trail difficulty profile and a location index
為方便你計劃行程，本指南附有地點目錄及詳細的多方位難度資料。另外，出入口及交通接駁點更附有網格座標grid reference 。 -
Fiber optics - refractive index profile, refracted ray method
光纖.用折射線法測量折射率 -
The variational problem related to the coupled vector wave equations and boundary conditions of circular dielectric waveguide with arbitrary refractive index profile is solved using the finite element method ( fem )
應用有限元方法求解了任意徑向非均勻折射率分佈圓柱對稱介質波導中縱向場耦合波動方程定解問題所對應的變分問題，該方法不受弱導或高斯模場分佈等限制。 -
With former people ' s work, an appropriate method is applied to our analysis and design : a reasonable relation between refractive index profile in model and parameters in the fabrication technology is proposed, and on this basis single mode performance and half wave voltage are analyzed by vectorial fem
結合前人的結果，本文提出了在針對本項研究課題的解決方法：根據一定的折射率分佈模型，結合實際的工藝條件，選擇合理的參數作為分佈模型中的參數，然後做矢量有限元分析。 -
In this paper, we computed and found the main parameter for facture of ti : linbo3 waveguide, by the function of ti diffusion profile in linbo3, and the waveguide mode ' s cut - off condition. the parameters include waveguide width : 8 m, titanium film thickness : 50 ~ 60nm, index change : 0. 006, diffusion temperature : 1050 and diffusion time : 9 ~ 10 hours
本文從ti擴散特性和波導導模截止條件入手，計算並確定了製作單模ti linbo _ 3波導的主要參數，如：波導寬8 m ， ti膜厚50 60nm ，擴散溫度1050 ，擴散時間9 10h等。
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