面結型激光器 的英文怎麼說

中文拼音 [miànjiēxíngjīguāngqì]
面結型激光器 英文
junction laser
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 結 : 結動詞（長出果實或種子） bear （fruit）; form （seed）
  • 激 : Ⅰ動詞1 （水因受到阻礙或震蕩而向上涌） swash; surge; dash 2 （冷水突然刺激身體使得病） fall ill fr...
  • 光 : Ⅰ名詞1 （照耀在物體上、使人能看見物體的一種物質） light; ray 2 （景物） scenery 3 （光彩; 榮譽） ...
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 激光器 : [光學] （光激射器） laser （縮自 light amplification by stimulated emission of radiation）; optic...
  • 激光 : [物理學] laser 激光靶 laser target; 激光報警器 laser avoidance device; 激光玻璃纖維 laser fibre; ...
  1. 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 。
  2. Working on laser diode fiber - coupling modules was summed up, they are, setting up the model of far - field distribution of laser array and the far - field characteristics of difference structures ; designing the temperature - controlled laser diode fiber modules, that has been used as a laser system with temperature - controlled and fiber - output ; realization with high - brightness laser diode fiber - coupling modules ; the fiber ' s application in the field of high power laser

    總結了自己在光纖耦合輸出激光二極體模塊方面所做的一些工作，建立了半導體激光器列陣遠場光束分佈模型，並結合具體參數分析了不同結構的激光器列陣的光束遠場分佈特性，可以知道我們設計和優化激光器列陣的結構。設計並製作了光纖耦合模塊的溫度控制系統，並製作成溫控光纖輸出激光器半導體系統投入使用。
  3. Finally, bayesian fusion algorithm with weibull distribution has been studied in detail by using he - ne laser life test data., which includes three aspects, that is, the selection of weibull distribution model, the posterior distribution of weibull parameters with multiple a priori information and the dynamic modeling method of weibull distribution parameters under the condition of different test environments

    最後，結合he - ne激光器壽命試驗數據，重點研究了威布爾分佈的bayes融合估計演算法，主要包括以下三個方面的問題，即:威布爾分佈模型選擇、多源驗前信息的威布爾分佈參數的驗後分布、不同環境下的威布爾分佈參數的動態建模方法。
  4. In this paper, micro - cavity semiconductor laser ( mcsl ) with pillar vertical - cavity surface - emitting structure ( vcsel ) which has potential applications in optical communication and optical interconnect is theoretically analyzed, the calculation model that used to discuss the modal performance of rectangular columnar and cylinder vcsel with oxidized aperture is established by using vector field model. the numerical simulations in the case of cylinder structure show oscillating wavelength and threshold gain against inside and outside radius of laser, the layer refractive index and pair number of bragg mirror, thickness, position and oxidized material ' s refractive index of oxidized aperture, in detail. more practically, considering dos shell of laser as non - perfect one, or supposing that dos shell is separated from the laser, we can obtain more significative results

    本工作以矢量場模型出發，對具有誘人應用前景的柱形垂直腔面發射結構（ vcsel ）的微腔半導體激光器（ mcsl ）進行了理論分析，建立了用於分析方柱形和圓柱形結構具有氧化孔徑層的激光器的模式特性的理論模型；對圓柱形結構情況進行了數值模擬，得到了振蕩波長、閾值增益隨激光器內外半徑、 bragg反射鏡層折射率、周期數以及氧化孔徑層厚度、位置和氧化物折射率的詳細變化規律；為使理論計算更接近實際，將外加金屬包殼視為非理想導體，或將金屬包殼與激光器結構隔開，分別對這兩種情況下的結果進行了討論。
  5. 2 : propose a who1e blueprint of the 3 - - d 0ptical multi - - sensors profilometry system. implement the most important parts of hardware and software subsystems of the system, it can profi le some rigid and soft objects

    2 ：提出多個激光線結構光傳感器的三維腳形測量系統設計方案，完成了對於三維鞋楦和腳型三維面形測量的硬體和軟體系統的實現。
  6. Based on the requirement and target of the projects, firstly, pcf bragg grating are investigated theoretically and experimentally. moreover, the effects of filling high refractive index material ( nematic liquid crystal, nlc ) in pcfs on the transmission mechanism and propagation properties are studied by using plane - wave method and finite - element method ( fem ), farther, several novel pcfs are proposed and designed. lastly, we propose and demonstrate a clad - pumped er3 + / yb3 + - codoped fiber laser, which integrate all performances of broad - band tunable wavelength, uniform output power spectrum, high repeat frequency and high average power to together

    本論文選題于國家973 、 863以及國家自然科學基金等項目，結合課題的要求和主要目標，在對光子晶體光纖（ pcfs ）傳輸特性研究的基礎上，首先對光子晶體光纖光柵進行了理論和實驗研究;然後，採用平面波展開法和有限單元法分析了在光纖的空氣孔中填充高折射率液晶對光纖傳導機制和傳輸特性的影響，提出並設計了幾種新型光子晶體光纖;最後，提出並研製成功連續可調諧、輸出功率譜均衡的全光纖化、高功率包層泵浦鉺鐿共摻光纖激光器實驗樣機。
  7. 3 、 by utilizing the theory of fuzzy synthetic evaluation, the laser - induced effects on ccd camera were investigated. the fuzzy evaluation model was present and applied in experiment of ccd disturbed by pulse and cw laser. the result of fuzzy synthetic evaluation is consistent with the experiment

    3 、根據第二章提到的激光干擾面陣ccd探測器的干擾機理與模糊綜合評估理論，結合實驗中得到的實驗數據，建立了激光干擾< wp = 5 >面陣ccd光電探測器干擾效果模糊綜合評估模型，並對本文開展的干擾實驗進行了模糊綜合評估，得到了與實驗結果一致的評估結論。
  8. Compared with green light - emitting device, blue oled has many problems such as brightness, efficiency, stability, and color saturation, in this study we investgaited the blue oleds systemically : 1 ) double heterosturcture oled was charaterized. due to the introducing of electron transport layer alq3 and hole - blocking layer balq3, the energy matching was more reasonable and the carrier injecting was more effective in the double - layer device. the maximum efficiency and luminance of this device attained to 1. 90 lm / w and 10, 000 cd / m2, respectively

    其次，由於一直以來藍光oled器件的研究處于相對落後的狀態，其發光亮度、效率、穩定性和色純度都無法綠光器件相比，所以本論文在以下幾個方面對藍光器件的性能進行了系統的研究: 1 ）研究了雙異質型藍光oled器件，由於本研究引入了空穴阻擋層，使得載流子的復合和激子的擴散被限定在發光層內，器件的發光效率達到了1 . 90lm / w ，最大亮度達到了10000cd / m2 ，比傳統結構器件的效率和亮度提高了約一個數量級; 2 ）制備了結構為ito / npb / balq3 / alq3 / mg : ag的oled器件，研究發現，當改變各有機層厚度時，器件的電致發光光譜發生了從綠光到藍光的移動。
  9. Freezing efficiency of f atom in oxidant nozzle of different contour walls, mixing mechanism of reactants in 2slot ( two - dimensional, plane symmetry nozzle ) nozzle and comparison of flow - fields & ssg between 2slot and 3slot ( 3 - slit jet plane nozzle ) have been studied by using 2d cr program. the conclusion is significant to understand the requirement of reactant flows and to generate ideas for nozzles design

    利用二維r程序，研究了單噴管型面對f原子凍結效率等參數的影響：研究了二維平面對稱噴管（ 2slo ）的反應流混合機制和混合角對激光器性能的影響；對比研究了zslot和三狹縫平面對稱噴管oslot ）流場和增益特徵。
  10. Abstract : a laser damage facilities, which has mm size spot and operates in tem00 mode ， were achieved. in order to know the reasons of laser damage, the laser energy density was controlled near the damage threshold of the oxide thin films. according to the examined near - threshold damage morphology, the damage mechanisms of the optical coatings can be divided into two types. one was caused by melting of the coating materials, another by exploding, induced with the inner stress of the film. the plasma generated was an important reason to expand the damage area

    文摘:採用毫米量級大光斑的近單模的激光器，控制入射薄膜表面的激光能量，獲得了幾種常見單層膜和增透膜的損傷形貌，實驗結果表明，薄膜的損傷可區分為熔化型和應力型兩種，薄膜表面等離子體對損傷斑點的擴大有重要作用。
  11. And the use - case diagram, state diagram and class diagram are used in uml diagram, which describe the software model from its function, logic and static structure. and the main arithmetic is shown. during the detail design process the com component technology is applied to envelop the logical part, hence to update and improve the software ; the software system of evaluation of the virtual prototype of the high power tf co2 laser is developed

    本文採用面向對象的軟體工程方法對高功率橫流co _ 2激光器虛擬樣機評價軟體的需求進行了分析，並用uml中的用例圖、狀態圖和類圖分別從功能、邏輯和靜態結構三個方面對軟體模型進行了描述，提出了主要演算法，在詳細設計過程中應用com組件技術對其中邏輯部分進行封裝，以便於升級和改進，開發了高功率橫流co _ 2激光器的虛擬樣機評價的軟體系統。
  12. The third one, we calculated the local facet temperature theoretically and experimentally when ld are operated, the former, we used the henry ' s model, however, the latter, we chose the photoluminescence and raman spectra, finally, we found that accuracy of pl is better than that of raman spectra, however, theoretical results is higher than trial results, but theoretical results accorded with pl when operating current increase. the fourth, electric derivative testing techinque at the constant current ( 500ma ) and temperarure ( 40c ). we study the reliability of ld, and analyzed the reasons, we measured more than the ingaasp high power semiconductor lasers with electric derivative technique, and analyzed the relation between the electric derivative parameters, m, b, h and reliability of devices

    分別從理論上和實驗上計算分析了激光器在工作時腔面的溫度分佈，理論上採用的是henry模型，實驗上通過光致發光和拉曼光譜法測試了激光器在工作時的腔面溫度分佈；結果表明光致發光法測量的較為準確，拉曼光譜法測量的值偏大，由於我們對理論模型做了一定的近似，理論結果偏大，但理論值在大注入時和光致發光法符合的較好，由此可見光致發光法對研究腔面的溫度有更大的優越性。
  13. Meanwhile, with the development of wdm / dwdm communication systems, more and more attention is paid on the edfas with broader bandwidth, good gain and noise feature, and gain clamping, etc. according to the tianjin natural science foundation project : intelligent fiber amplifiers and light sources, the tianjin natural science foundation project : ( c + l ) broadband fiber amplifier and the nankai - delta ( tianjin ) project : development of gain flattened erbium - doped fiber amplifiers, this dissertation is mainly focused on the study of novel gain - clamped edfa, light sources, multi - wavelength fiber laser and variable optical attenuator for gain - clamped usage, gain and noise improvement of edfa, and broadband edfa

    Wdm / dwdm通信系統的發展又需要edfa具有更大的帶寬、優良的增益和噪聲特性和增益控制等功能。基於上面的情況，並結合天津市重點基金項目? ?智能光纖放大器光源的研究、天津市重點基金項目? ? （ c + l ）超寬帶摻雜光纖放大器和南開-達爾泰（天津）項目? ?開發增益平坦的摻鉺光纖放大器等課題，論文主要圍繞新型增益控制edfa 、增益控制用光源、多波長激光器及可調光衰減器、 edfa性能優化和超寬帶edfa等方面進行了理論和實驗研究。
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