介质薄膜的厚度和折射率测量的实验研究_百度文库
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介质薄膜的厚度和折射率测量的实验研究|实​验​用​m​ ​-​ ​l​i​n​e​ ​法​测​得​三​层​平​板​波​导​在​不​同​阶​导​模​下​的​有​折​效​射​率​,​通​过​解​光​波​导​的​色​散​方​程​,​采​
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​用​计​算​机​编​程​拟​合​,​有​效​的​得​出​了​介​质​薄​膜​的​介​质​薄​膜​和​折​射​率​,​并​给​出​了​各​阶​模​式​的​光​场​在​波​导​中​的​分​布
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离子交换渐变折射率平面光波导的折射率分布的确定
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内容提示：离子交换渐变折射率平面光波导的折射率分布的确定,确定,离子,渐变,离子交换,波导的,离子交换波导的,平面波导,折射率分布,平面光波导,分布的确定,渐变折射率,折射率,渐变折射率材料,光波导,光波导理论,光波导设计,光波导模式理论,硅基光波导,光波导图片
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Effective Index Method (EIM) and Beam Propagation Method (BPM), which are very effective way to design and optimize waveguide devices at present.
在此基础上,应用有效折射率方法(EIM:Effective Index Method)对条形波导进行研究。
Improved methods of reduction of bend loss of silicon-on-insulator waveguides were simulated and analyzed by means of effective index method (EIM) and two dimensional beam propagation method (2D-BPM).
采用有效折射率方法EIM (EffectiveIndexMethod)和二维束传播算法 (2D BPM)对SOI(Silicon on insulator)波导弯曲损耗的改善方法进行了模拟分析.
The relation of normalized core radius (p/Λ) with hole-to-pitch ratio (d/Λ) and normalized frequency (Λ/λ) is obtained using full-vectorial effective index method. The illogical fixed valve of p/Λ is modified, and an improved full-vectorial effective index method is proposed.
得到了全矢量有效折射率方法中归一化等效纤芯半径(p/Λ)随归一化空气孔直径(d/Λ)和归一化频率(Λ/λ)的变化关系,修正了p/Λ为固定值的不合理取法,得到了改进的全矢量有效折射率方法(IFVEIM).
A vectorial effective index method is used to design photonic crystal fibers with flattened dispersion around 800 nm.
采用矢量有效折射率方法设计了在800nm附近具有平坦色散的光子晶体光纤。
Dispersion analysis of photonic crystal fiber using improved full-vectorial effective index method
改进的全矢量有效折射率方法分析光子晶体光纤的色散特性
Study of effective-index method for SOI rectangular optical waveguides
SOI矩形光波导的有效折射率方法的研究
Secondly, this paper introduces the basic theory of waveguide and effective-index method (EIM), and then the configuration parameters and single-mode propagation condition of rib waveguide have been analyzed with effective-index method.
其次，本文介绍了光波导的基本理论和有效折射率方法(EIM)，并利用有效折射率方法分析了脊形波导的结构参数和单模传输条件。
It is found that Marcatili's ap- proximation overestimates the coupling length, the effective-index method underestimates the coupling length, and that, while varia- tional method gives more accurate propagation constants for the modes, perturbation method gives predictions on coupling length as accurate as the predictions by variational method.
可以看出,Marcatili方法得出的耦合长度偏大,而有效折射率方法给出的结果却偏小。 变分法求出的传播常数则较精确,变分法与微扰法求得的耦合长度基本上一致。
This paper analysis the errors from the calculation for SOI rectangular opticalwaveguide, reaching a conclusion that the parameters calculated from rectangular waveguide shortand long side are different. The conclusion is available for using effective-index method to analysisparameters of waveguides.
通过分析有效折射率方法在计算SOI矩形光波导中的误差,得出了从矩形波导的短边和长边分别计算波导的参数是不相同的结论,对于利用修正的有效折射率法求解波导参数有指导意义。
A method to analysis the SOI rectangular-core optical waveguide directional couplers,which dependent on the Effective-index method is put forward, and the results of Effective-indexmethod are highly precise and nearly close to the exact results, and some conclusions which valuablefor the analysis and design of optical waveguide directional couplers are educed at last.
提出一种利用有效折射率方法分析SOI矩形光波导定向耦合器的理论,并且取得了与精确解非常吻合的结果,最后得出了一些有用的结论,对分析和设计光波导定向耦合器有一定指导意义。
The paper introduces MMI coupler based on multimode interference theory. Using EIM and FD-BPM, the optical field is simulated, and the fabrication errors of multimode waveguide width and etch depth are analyzed.
本文介绍了矩形多模干涉耦合器的基本原理,以1×3干涉型SOI多模干涉耦合器为例,采用有效折射率方法和光束传播法(BPM)模拟了多模波导中的光场分布,分析了多模干涉耦合器的多模波导宽度及刻蚀深度的制作容差性。
Mode characteristics of Ti diffused Er
3 channel waveguide is discussed with
本文采用有效折射率方法对Ti扩散Er3＋∶LiNbO3沟道波导的模式特性进行了分析，分析中考虑了Er3＋∶LiNbO3晶体的各向异性，并与变分法分析进行了比较，二者结果相一致
The optical field distribution in the multimode wave-guide is modeled by EIM and mode propagation analysis method (MPA). we present the design and simulation of an integrated 1 X 2,1 X 4 SI-MMI ,2 X 2 PI-MMI splitters with SOI technology. The devices realized the function of the coupler and show uniform output.
本文介绍了矩形多模干涉耦合器的基本原理，采用有效折射率方法和导模传输分析方法模拟了多模波导中的光场分布，设计并模拟1×2，1×4对称干涉型光功率分配器、2×2配对干涉型光功率分配器，得到了比较均衡的功率输出。
Prospect of its development is given in the end. 2、The numerical methods using to investigate PCF, especially the fully vectorialeffective index method are studied in chapter two.
2、第二章概述了光子晶体光纤的各种研究方法并着重研究了全矢量有效折射率方法。
3、The total dispersion of photonic crystal fibers is obtained by summing up materialdispersion and waveguide dispersion. Using the normalized property of waveguidedispersion we designed the photonic crystal fibers with broadband ultra-flattenednormal,anomalous, and nearly zero dispersion property around the operatingwavelength of the widely used Ti: sapphire femtosecond lasers -800 nm and thetelecommunication window -1.55μm by the modified full vectorial effective indexmethod in chapter three.
3、第三章将光子晶体光纤的总色散分为波导色散和材料色散两部分分别计算,结合波导色散的归一化性质利用改进的全矢量有效折射率方法设计了在广泛使用的钛宝石飞秒激光器工作波长800 nm和光纤通信窗口1.55μm波段具有宽带平坦正常色散、反常色散和近似零色散特性的光子晶体光纤。
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The effective index method is used for calculating theoretical propagation constants, assuming no sideways diffusion.
It is demonstrated that application of the "effective index method" on leaky strip guides allows the determination of the optical pattern parameters throughout an exposure or annealing procedure.
An Extension of the Effective Index Method to Analyze Leakage Losses in Rib Type Waveguides
An extension of the effective index method is proposed as a tool to investigate leakage losses in two-dimensional waveguides.
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We develop an approximate analysis based on the effective-index method to obtain the universal chart of the normalized parameters describing the mode dispersion of a two-dimensional diffused-channel wave-guide with an erfc-Gaussian index profile.
We have shown that the Gaussian can well be approximated by an hyperbolic-secant-squared profile and we have compared our results with those obtained by using the effective-index method.
A general power-law cladding geometry profile is considered, which is solved by the effective-index method in conjunction with the transfer-matrix-method to obtain the effective indices and leakage losses of the modes.
The dispersion curves of ion-exchanged glass strip-guides were computed by the effective-index method and were then used to model the investigated structures.
&&&&&&&&&&&&&&&&&&&&&&&& This paper we develop an accurate variational analysis of a three channel waveguide directional coupler. We have also discussed the applicability of approaches, namely: (1) planar waveguide (Marcatili) (2)effective- (3) first-order pertur- bation theory for such couplers. It is found that Marcatili's ap- proximation overestimates the coupling length, the effective-index method underestimates the coupling length, and that, while varia- tional method gives more accurate propagatio... &&&&&&&&&&&&本文提出一种用以计算三沟道定向耦合器耦合长度的精确变分方法。同时讨论一下已有的几种主要近似方法的适用范围:(1)平板波导近似(Marcatili法);(2)有效折射率法(EDC);(3)微扰论方法。可以看出,Marcatili方法得出的耦合长度偏大,而有效折射率方法给出的结果却偏小。变分法求出的传播常数则较精确,变分法与微扰法求得的耦合长度基本上一致。&&&&&&&& The unique waveguiding in terraced and narrow mesa substrate inner stripe (TSIS & NMSIS) lasers is analysed. The good agreement between results calculated and measured is presented. &&&&&&&&&&&&本文对窄台和阶梯衬底内条形激光器的波导特性进行了理论分析,利用有效折射率方法得到了光场分布结果,计算结果与实验数据符合得较好。&&&&&&&& This paper presents a trial solution for the predominant field distribution of an arbitrary order guided mode of Ti : LiNbO3 optical waveguides. The parameters of the solution can be reasonably determined by using the variational technique. And the propagation constant can be approximately obtained simultaneously. Compared with the extended effective index method and the effective index method, the main advantage besides its high accuracy and simplisity in methematical style is that the unknown parameters a... &&&&&&&&&&&&给出了Ti扩散LiNbO_3条波导任意阶导模场分布的试探解.通过变分法分析,不但可以合理地确定其中的待定参数,而且也得到了相应导模传播常数的近似值.与扩展的有效折射率方法比较:这种解不但在函数形式上简单,待定常数确定方便,而且具有精度高的优点.还可以得到等效一维波导折射率分布的解析表达式.&nbsp&&&&&&&&相关查询:
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