y-branch y 中文意思是什麼

y-branch y 解釋
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  • y :
  • branch : n 1 （樹）枝〈泛指大枝或小枝；bough 特指大枝，也指連花、果折下的枝；limb 指大枝；twig 指小枝〉。2...
  1. Using the method of simulation calculation and compare, we choice the structure of y - branch balance bridge interference switch

    經過模擬分析和比較，選擇y分叉平衡橋路干涉型光開關結構。
  2. On the base, we designed the waveguides " structure and fabrication parameter. and in the design of symmetric y - branch of proton - exchange s ingle - y phase linbo3 modulaor, we used finite difference beam propagation method to analyze and compare the optical transmission loss of different s - bend y - branch

    本文對質子交換linbo _ 3單y相位調制器的重要部件y分支進行了深入的研究，比較了不同s彎曲形式的y分支過渡長度與損耗的關系，並計算出間距250 m時的最小彎曲長度。
  3. On the basis of the analysis and compare, we designed the least length of s - bend y - branch to decrease the transmission loss when the space between the outport is 250jjm. we also analyzed thoroughly dependence of half - wave voltage and bandwidth on the width, the length of modulator ' s electrodes and the gap between two electrodes

    對于調制器的電極本文也進行較為深入的研究，探討了電極寬度、電極長度、電極間距對半波電壓的影響，並據此對單y相位調制器的電極結構進行了優化設計。
  4. The two main elements are analyzed in detail : coupling loss and y - branch loss

    我們對這其中的最主要因素耦合損耗和y分支結構損耗進行了詳細地分析。
  5. Loss in the device includes coupling loss, y - branch loss, electrode absorbing loss and material loss

    調制器的損耗包括耦合損耗， y分支結構損耗，電極吸收損耗及材料的散射損耗等等。
  6. For coupling loss, the method to reduce this loss is pointed out without changing other structural parameters decided by the above requirements. y - branch loss is analyzed by bpm ( beam propagation method )

    對于耦合損耗，指出了在不改變前面結構參數（因為它們的設計是根據半波電壓和單模要求設定的）情況下，實現小耦合損耗的方法。
  7. 4db. compared with the splitter using normal y - branch which was with the excess loss about 4. 3db and uniformity about 1. 8db, the performance was improved markedly

    相比普通y分支結構的功分器（損耗為4 . 3db ，均勻性為1 . 8db ） ，器件性能得到明顯改善。
  8. We propose a novel and simple y - branch configuration with simox soi wafers in order to achieve an asymmetric branching ration and low excess loss. the proposed structure only deviate the center axes of input taper wave - guides

    我們用soi晶片設計了一種新型的y分支型功率分配器，此結構通過改變中心軸線的位移值即可實現不同的功率分配的功能。
  9. The numerical and experimental results of this y - branch structure indicate that the proposed y - branch structure, without extra fabrication technologies, has a lower excess loss as compared with the conventional ones. optimal designs of the structural parameters for the multimode interference coupler are carried out. low loss and high uniformity of the multimode interference couplers are achieved when the waveguide is weakly guiding

    研究了y分支耦合器中分支頂端間距（為工藝製作方便）帶來的附加損耗，提出了低損耗新型y分支耦合器結構，並給出了相關結構參數的優化設計方法，我們的理論計算和實驗測試結果均表明，該新型結構可以在常規光波導製作工藝下提高器件的指標。
  10. The finite difference beam propagation method ( fd - bpm ) can simulate the performance of the waveguide accurately. single mode rid waveguide structure parameters are derived by variational - effective index method ; fd - bpm and its transparent boundary condition ( tbc ) are concerned, and then the eim used to transfer a 3d waveguide to 2d waveguide is analyzed ; finally we summarize the characteristic of the y branch

    本文先利用變分有效折射率法推導出滿足單模傳輸的脊形波導結構參數;接著介紹了有限差分束傳播法及求解的透明邊界條件，同時分析了將三維結構轉化為二維結構的有效折射率法，最後對y分支的特性進行了模擬。
  11. Y - branch has a simple structure and high reproducibility, it is possible to fabricate compact branching devices with stable branching rations

    Y分支結構不僅結構簡單、可重復性生產而且其兩分支輸出穩定。
  12. They are usually applied to optical signal distribution systems. such as cable television, broadcasting systems and pon systems. in this thesis, y - branch and multimode interference in soi technology are studied and simulated

    因為它在光通信系統、光纖用戶網、光纖catv 、光無源網路（ pon ） 、光局域網等領域中被廣泛應用。
  13. It is composed of thirteen functin ? components including two 3 - db y - junction power splitter, two directional couplers, two waveguide attenuators and one polarizer of waveguide itself. the prominent feature of the device is that it has a beat detection function with respect to the single y - branch mioc device, and it plays an important role in improving the inertial - grade and the high precision steady - aim system because of the beat detection function. farthermore it has direct influence on the improvement of the high flexibility, shockproof and overload - resistance for the steady - aim system

    器件的工作波長為1 . 3 m ，集分束器、合束器、起偏器/檢偏器、相位調制器、波導吸收器等十三個功能單元於一體，除了單y多功能集成光路器件具備的功能外，它還具有拍頻檢測功能，因而對提高慣導級和高精度穩瞄系統起著重要的作用，並直接影響著穩瞄系統的高機動性、抗沖擊力和過載能力的提高。
  14. In developing the planar lightwave circuits, the coupling loss between a waveguide with a high refractive index difference and a single mode fiber is considered. a novel spot - size converter based on a y - branch structure is proposed and numerical simulation results indicate that it can reduce the coupling loss effectively with low polarization dependent loss and good fabrication tolerance

    在平面波導光器件研製中，提出了高折射率差二氧化硅波導與光纖的新型低損耗連接，與現有波導單側變窄的結構相比較，有效的降低了連接損耗，同時具有偏振相關損耗低，工藝容差性好的優點。
  15. Based on the enlarged waveguide y - branch, we introduced the sheared y - branch tir structure. after analyzing the structure parameters of the sheared asymmetrical y - branch, the extinction ratio of the tir optical switch can be more than 40db in theory. by wet erode, we finished photon - induce total internal reflection y branch optical switch with gaas material

    在展寬型y分叉的基礎上，提出了隔離型非對稱y分叉全內反射結構，通過對隔離型非對稱y分叉的結構參數的分析，在理論上可以設計出消光比達到40db以上的全內反射型光開光。
  16. A s - bend symmetric y - branch has been proposed to obtain lower light transmission loss. 2. the design of electrode structure

    在boa結構設計中，為了實現器件的低損耗設計，我們採用上升反正弦s彎曲構成對稱y分支。
  17. In this thesis, optical couplers consisting of multimode interference ( mm ! ) coupler, y branch, directional coupler ( dc ) and mach zehnder interferometer ( mzi ) were analyzed and simulated

    本論文對各種平面波導型耦合器： mmi 、分支波導、定向耦合器和mach - zehnder進行了模擬和優化設計。
  18. The thesis gives a simulation result of s - shape y - branch structure with numerical computation software and it also meets the demand

    本文結合已有的軟體對s彎曲結構進行了分析模擬，也得到了達到性能指標的分析結果。
  19. Applying an exact modal propagation analysis method and self - imaging theory, i analyzed the principle of mmi coupler. then, the self - imaging effect in graded - index waveguide has been analyzed and simulated using three - dimensional bpm. considering normal technology error, a low loss y - branch structure ( symmetric or asymmetric ) with a multimode waveguide transition section is introduced and designed

    在設計y分支波導結構時，考慮常規工藝誤差的影響，引入多模波導作為y分支波導結構的過渡區，利用參數空間搜索法來設計結構參數，實現低損耗的y分支結構。
  20. Secondly, simulation results aim at some passive devices, such as mmi and y - branch are given

    在保證一定精度的前提下，這種方法能夠平滑地處理soi材料的折射率突變界面。
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