耦合泵 的英文怎麼說
中文拼音 [ǒugěbèng]
耦合泵
英文
pumps-couplings-
Then after analysising each characteristics of phosphate glass material, the fiber rod - in - tube by invaginating core rod, inside cladding and outside cladding is used to fabricate the er / yb phosphate glass fiber successfully by polishing and vacuumizing fiber rod - in - tube. finally some techniques, such as cladding pump, prism coupling pump and fusing pump are used to measure the gain of fiber amplifiers
最後對拉制出的光纖提出了包層泵浦、棱鏡耦合泵浦和熔接耦合泵浦三種可行的增益和傳輸特性測試測方案,並針對鉺鐿共摻磷酸鹽玻璃光纖的特性,指出了熔接耦合是測試增益和傳輸特性的最佳方案。Quantum interference occurs in a three - level a system with near - degenerate dipole allowed transitions, which are coupled to the same linearly polarized incoherent field
如,當a型的兩個躍遷與一個線性極化的非相干場進行耦合時,非相干泵浦產生量子干涉。Based on an amplified spontaneous emission ( ase ) source, a ring - cavity fiber laser, in which sensor element acted as the reflector of the cavity, was achieved with high - signal noise ratio ( snr ) and high - power. it was demonstrated that the output power was maximum, when output coupler ratio of the coupler was seventy percent
實驗證實耦合器的輸出耦合比選為某一個最佳值70 ,當980nm泵光工作電流為50ma時,其輸出功率達3 . 5mw ,且輸出激光波長與作為反射鏡的光纖光柵中心波長相同。30 litre couplant tank. automatic pumped supply with full recirculation. visual and electronic level display. continuous couplant monitoring by flow sensor and ultrasonically
30升的耦合劑儲蓄槽。自動化泵槽裝置可以將其完全循環利用。可顯示直觀的電子層面。通過流量傳感器和超聲波地來對耦合劑進行連續監控。According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d
本文首先介紹了ld泵浦nd : yag激光器的發展狀況、主要特性及其應用,從四能級速率方程出發,推導了ld泵浦nd : yag激光器的閾值、輸出功率和斜效率的表達式,並簡述了激光器的工作原理、結構型式和倍頻方法;其次,以空間相關的速率方程為基礎,提出了ld端面泵浦nd : yag激光器的設計方法,給出了一定泵浦耦合方式下,振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據,以此為依據,設計了自聚焦透鏡耦合小功率ld泵浦nd : yag激光器和透鏡組耦合高功率ld泵浦nd : yag激光器,對激光器的輸出功率和功率穩定性等特性進行了實驗研究;再次,在帶尾纖輸出的高功率ld泵浦nd : yag激光腔內插入一隻空液晶盒,觀察到了激光器以單縱模運轉;最後,根據泵浦光焦斑端面位置對激光輸出功率的影響規律,提出了ld端面泵浦nd : yag激光位移傳感新方法,並進行了理論和實驗研究,研究結果表明:當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時,激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律,測量范圍和靈敏度依賴于泵浦功率,隨著泵浦功率的增加,測量范圍擴大,靈敏度提高,當端面泵浦功率為7 . 24w (最大輸出功率為1 . 926w )時,激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。In the situation that the reflection loss of the duct inwall was not in considering, even condensed the pump beam 100 times, it could realize the output efficiency of more than 70 %, this was that the other coupling way hardly to accomplish
在不考慮內壁反射損耗的情況下,即使將泵浦光束縮束100倍,也能夠實現70 %以上的輸出效率,這是現有其他耦合方式難以實現的。The increasing of single channel capacities and evolution of optical networks topology, from simple point - to - point to intelligent optical networks, call for strict demands to optical filters. in this paper, the crucial technologies of optical filters such as interleaver, optical digital filter, fused biconical taper all - wave coupler as well as polarization - pump combiner have been studied experimentally and theoretically, which include : 1. a new process, cascaded fbt ( fused biconical taper ) with precise control as well as strict interference arm length difference, is proposed for the first time to our knowledge
單通道速率不斷提高以及網路拓撲由單一的點對點傳輸向可上下載的環網和可動態選擇波長路由的智能型格形光網路演進,對光濾波器的常規性能指標、時域特性和動態可調諧特性提出了更加苛刻的要求,鑒於此,本論文全面研究了全光纖熔錐型奇偶交錯濾波技術、數字光濾波技術、基於g - t全通濾波器的奇偶交錯濾波技術以及熔錐型全波耦合器和偏振泵浦合波器。Oil feeding pump system is a complex system, which exits serious non - linearity > time - delay, strong couple and some unascertained factors, so it ca n ' t achieve better results by traditional control methods
輸油泵系統是一個具有較強非線性、滯后性、強耦合和多種不確定因素的復雜被控系統,採用傳統的控制方法難以實現對輸油泵系統的良好控制。The key parameters are related to the hydrodynamic parameters and its weight
潛水排污泵耦合裝置關鍵參數的確定主要與泵本身水力設計參數以及設計重量有關。Measuring the intracavity loss of laser. in the theory, we analyze the relation of output power and input power of the different transmission rate of output mirror. using the experiment validated the theory result
實驗上測量了激光器的內腔損耗,並計算得到在泵浦功率等於2 . 2w時,最佳輸出耦合透射率t _ ( opt ) = 5 . 2 。This thesis built the model of micropump, the deformation of the micropump membrane and the volume change of the micropump chamber under piezoelectric - drive were simulated by finite element method ( fem ). the effects of the membrane thickness, shape and piezoelectric voltage on the volume change of membrane were analyzed. the relation between intrinsic frequency and membrane thickness was also discussed
建立了微泵膜片的有限元模型,採用直接耦合法模擬分析了微泵膜片在壓電驅動下產生的形變和由此引起的微泵腔體體積的變化,得出了膜片厚度、形狀、和壓電驅動電壓對微泵腔體體積變化的影響。By the method of matrix optics, the waist width and imaging distance of gaussian beams through the coupling system are calculated. by the result of the calculation, a set of double planoconvex lens coupling system are designed and manufactured. the coupling efficiency is up to 92 %
利用矩陣光學的方法,計算了高斯光束經耦合系統聚焦后的像距和束腰寬度,以此為指導設計加工了一套雙平凸鏡耦合系統,耦合效率達92 ;在以上基礎上研究了泵浦光與振蕩光在激光晶體中的匹配,計算出了泵浦光經耦合系統后的最佳焦點位置。By the ray tracing in the channel waveguide, the dependency of the launching efficiency on the relative position of the pumping beam to the waveguide is analyzed and the coupling conditions are optimized
通過幾何光學法追跡泵浦光線在波導中的傳播,系統地分析了泵浦光束與波導相對位置變化對泵浦耦合效率的影響,進而確定最佳耦合條件。In this paper, some investigation and design as following. have been carried out on er - yb codoped phosphate glass waveguide laser first, three primary performance parameters of er - yb waveguide laser pump threshold power ; output power and slope efficiency have been commulated and analysed theoretically based on er ~ ( 3 + ) - yb ~ ( 3 + ) energy configuration ; rate equation of stable state and transmitting equation. the influences of er - yb ions concentration ; enabled waveguide length ; light dot radius of signal light and pump light ; reflectivity of output lens on three above parameters have been researched
首先,從er ~ ( 3 + ) - yb ~ ( 3 + )能級結構出發,結合激光穩態速率方程與傳輸方程,對鉺鐿波導激光器的三個主要性能參數:閾值功率、輸出功率、斜率效率作了理論計算分析,並研究了鉺、鐿離子濃度、光波導激活長度、信號光與泵浦光光斑半徑比例、輸出耦合鏡反射率對這三個關鍵性能參數的影響。It has been found that by simulating the effect of coupling attenuation on all - optical wavelength conversion, all - optical wavelength conversion by using both light conversion and idle light can be realized respectively by adjusting coupling attenuation under the condition of different pump light and signal light powers
文章通過模擬耦合器衰減對全光波長變換的影響,發現在不同的泵浦光與信號光功率條件下,調節輻合器衰減可分別實現利用變換光的全光波長變換和利用閑頻光的全光波長變換。In the section 1, we have introduced the background and the recent advance of the flattened gaussian beam ; in the section 2, for the first time, we have calculated the type - i and type - ii shg conversion efficiency and simulated curves versus the crystal length, the pumping light polarization rate, the order of the flattened gaussian beam and the pumped power intensity, we obtain ed that the highest efficiency was influenced by the order and the polarization rate of the pumped flattened gaussian beam
從三波耦合方程及clbo晶體的光學特性出發,討論了以平頂高斯光束入射時穩態的三波耦合方程的大信號倍頻解(包括類及類相位匹配的倍頻解) 。計算了其在clbo晶體上的倍頻轉換效率與晶體長度,基波偏振分量比,基波階數及泵浦波強度之間的相互影響關系曲線。得出影響平頂高斯光束的最高轉換效率的因素是基波的階數n和泵浦波的偏振分量比d 。From three - wave coupling equations, the optimal crystal length, conversion efficiency and parametric light pulse width are computed numerically when clbo is used in picosecond optical parametric amplification. the results present that clbo are suited for optical parametric amplification in short wave band. in order to get higher conversion efficiency, the crystal length should be optimized according to the intensities of pump and signal waves
從三波耦合方程出發,對clbo用於皮秒級光參量放大時,最佳晶體長度、轉換效率和參量光的脈沖寬度進行了理論分析和數值模擬,結果表明clbo晶體適合在短波范圍作光參量放大,為達到高的轉換效率和窄脈寬的信號光輸出,泵浦光和初始入射信號光的強度應根據晶體長度取最優化值。A novel scheme is presented that can be used to efficiently pump optical waveguide amplifiers. it is based on the coupling between two adjacent waveguides, where pump light is gradually coupled from a non - absorbing pump waveguide into the amplifier waveguide
2 .對泵浦方式進行改進,基於鄰近波導間的耦合原理,提出一種能在整個波導長度上泵浦功率逐漸耦合進信號光波導中的耦合結構。From the theoretic analyses, we draw the conclusion that the pump power can be heighten by adopting the eccentric core double - clad fiber. and we put forward a new coupling technology : micro - prism technology
通過理論分析得出了用偏芯型雙包層光纖可以進一步提高泵浦功率的結論。並提出了一種新型的泵浦光耦合技術:微型棱鏡技術。It can be seen from the model that the two valve - controlled motors would be coupled with each other if the characteristic of variable - displacement pump is taken into account
由該模型可以看出,在考慮變數泵特性的條件下, 2個閥控馬達是相互耦合的。分享友人