激光轉換器 的英文怎麼說
中文拼音 [jīguāngzhuǎnhuànqì]
激光轉換器
英文
lasecon- 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) ...
- 轉 : 轉構詞成分。
- 換 : 動詞1. (給人東西同時從他那裡取得別的東西) exchange; barter; trade 2. (變換; 更換) change 3. (兌換) exchange; cash
- 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 : [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; ...
- 轉換器 : -ad
- 轉換 : change; transform; convert; switch
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Based pc, d / a convertor and 2 - dimension galvanometer scanning system, laser marking control system is built. coordinate data scanned and kept in the computer are transformed into the analog signals by d / a converter, then control the galvanometer to deflexion
基於pc 、 d / a轉換器和二維振鏡掃描系統搭建激光打標機控制系統,將存儲在主控計算機的掃描坐標點的坐標數據通過d / a轉換,將數字信號轉換成模擬信號來控制振鏡偏轉。In - phase wavelength conversion in semiconductor optical amplifier in critical lasing state
基於半導體光放大器臨界激射狀態的同相波長轉換The paper has founded the model of laser transmission in launch process and the movement model of laser - powered vehicle, and has analyzed the influence on performance of launch system, which was raised by some factors, for instance, the performance of thruster, the attenuation in transmission, the height of mode - transform, the laser power, the air drag force, the launch height, and so on
本文研究了激光推進微小衛星發射系統的概念和性能。建立了發射過程激光傳輸和激光推進運載器運動模型,分析了推進系統性能、大氣傳輸衰減、模式轉換高度、激光器功率、大氣飛行阻力、發射點高度等因素對發射系統性能的影響。On the radiation range of l - 4gw / cm2, the effects of the modulation in intensity, beam aperture, pulse width and intensity of 3 w on tsrs in frequency convector crystals have been analyzed in detail. the interrelated thresholds have been gained by calculating and theoretical evidences have been offered to prevent tsrs from damaging frequency conversion crystals, which will be applied to the engineering design of the laser drivers on high - fluence
光的強度調制、光束口徑、脈寬和強度等因素對諧波轉換晶體中tsrs的影響,並計算得出了一些相關闡值,得到了驅動器工作的臨界狀態,為防止出現tsrs的光損傷提供了理論依據,對高功率激光驅動器的工程設計具有實用價值。At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength
由於準相位匹配技術有其獨特的優勢,可以利用非線性光學晶體的最大二階極化張量,如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ ( 33 ) ,其有效非線性系數高出普通非線性光學介質(如bbo 、 lbo 、 ktp )一個數量級,而且可以人為靈活設計調制周期,通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段,選擇無走離效應,解決了常規pm難以解決的問題,拓寬了非線性晶體的應用范圍,極大地提高了頻率轉換效率,已成為非線性光學材料和固體激光器的研究熱點之一。Study on the laser scanner is very important since fluctuate of rotating speed of the motor, wobble of the shaft of the laser scanner, tremble introduced by motor changing phase, shake generated out of dynamic balance, turbulence introduced by the deflector rotating at high speed have an influence on rotating shaft and light beam so as to decrease quality of the laser imagesetter
轉速的波動、掃描器主軸的晃動、電機換相過程中的抖動、動不平衡產生的震動、轉鏡高速旋轉產生的湍流對轉軸和光束的影響等諸多因素,直接影響激光照排的質量。所以,對轉鏡式激光掃描器的研究有十分重要的意義。The actively and passive mode - locked fiber ring laser and two types of photonic switching, slalom ( semiconductor laser amplifier loop mirror ) and uni ( ultrafast nonlinear interferometer ) were developed. this thesis presented the principle and the requirements for the optical of frequency - shift sampling module under common conditions
研製了作為光取樣脈沖源的主動鎖模和被動鎖模光纖激光器;半導體光放大器環鏡及超高速非線性干涉儀的光子開關,並進行了頻差法光取樣、異步光取樣及基於時分光取樣的光子模數轉換的實驗研究。In the counting system, a semiconductor laser emitter is used as the light source, point laser beam produced by optic system, reflection of part transferred into electric signal by photoelectric triode, and scm system as the counter
採用半導體激光發射器作為光源,經過光學系統形成的最小激光束照射器件,反射光由光電三極體進行光電轉換,計數控制使用單片機系統。Laser diode ( ld ) has the advantages of small volume, light weight, longevity of service, high electro - optic convert efficiency and direct modulate etc. now it is more widely used in the fields of information, energy, therapeutic, material, entrainment and so on
半導體激光器(以下簡稱ld )具有體積小、重量輕、壽命長、電光轉換效率高、可直接調制等優點,目前在信息、能源、醫療、材料、娛樂等諸多領域都得到了越來越廣泛的應用,材料和器件的水平也有了長足的進展。Two - segment distributed feedback ( dfb ) semiconductor lasers can achieve tuning with single longitudinal mode in a certain wavelength range ; at the same time, its superiority also includes bistablity and wavelength conversion
其中,兩段式分佈反饋( distributedfeedback , dfb )半導體激光器可以在一定波長范圍內實現單縱模、可調諧工作;同時,它還具有雙穩、波長轉換等功能。Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered
在此基礎上,給出了一整套bbo - opo激光參數設計方案:計算了不同泵浦強度下的參量放大倍數;詳細計算了在nd : yag調q激光器各次諧波泵浦條件下的共線類和類相位匹配的調諧曲線,以及非共線類相位匹配調諧曲線;分析了走離角對非線性系數和群速匹配的影響;計算了參量過程的允許角;計算了bbo - opo的理論閾值條件;分析了飽和與泵浦光束的消耗過程;給出了轉換效率與超過泵浦閾值的倍數的關系;討論了轉換效率與輸出鏡反射率的關系;討論了線寬控制的各種方法;研究了利用非穩腔改善光束質量的方法;考慮了bbo晶體的設計。Firstly, optical trigonometry measurement principle and wok principle of linear ccd are introduced, which are based on to design optical focusing and imagery system with he - ne laser instrument as illuminant. secondly, peripheral circuit of linear ccd is designed in theory and experiment. finally non - contact thickness measurement instrument is constructed, using ccd as photoelectric transformation element and microprocessor as the controller
本文首先介紹了光學三角法測量原理,並對線陣ccd的工作原理進行了研究,以此為基礎採用氦氖激光器為光源,設計了光學聚焦及成像系統,對線陣ccd外圍電路的設計進行了理論設計和實驗研究,最後設計了以ccd為光電轉換元件,以微處理器為控制核心的非接觸式厚度測量儀及其系統。For the realization of ultraviolet and violet upconversion solid - state lasers, the maximal obstacle is the search of ultraviolet and violet upconversion laser materials
研製紫色和紫外上轉換激光器最大的障礙是紫色和紫外上轉換激光材料的制備。It has some advantages other than inorganic materials, such as quick response, large electro - optical coefficient, wide transparence, simple manufacture, low cost and easy for integration, etc. some pyridinium salts with " d - - a " structure have very excellent tpa and up - conversion fluorescence properties, so they are the possible candidates to be used to make tpa up - conversion dye lasers
這類材料具有響應速度快、電光系數大、透光波段寬、制備簡單、成本低廉、易於集成等優點。 「 d - - a 」型的吡啶鹽系列染料具有非常優秀的雙光子吸收和激光上轉換性能,是雙光子上轉換激光器的候選材料。This paper also presents a theoretical analyzing method for the instantaneous simulation of pulsed - preionization discharge by using pspice software, it is favorable to the optimal design of the laser discharge circuit
獲得的最大的電光轉換效率達19 。本文還發展了一種採用pspice軟體對脈沖預電離放電進行瞬態模擬的理論分析方法,有利於激光器放電電路的優化設計。Laser diode pumped solid - state laser ( dpssl ) is an important branch in laser field. continuous wave and pulse operation, q - switching and mode - locking operation have been achieved for dpssl which have a lot of uses in the field of medicine, process and so on
Ld泵浦的全固態激光器( laserdiodepumpedsolid - statelaser或dpssl )是激光技術領域的一個重要分支,與傳統激光器相比在重量、體積、電?光轉換效率、使用壽命和穩定性方面更具優越性。Take the laser diode as the photoelectric detector ' s lamp - house, the optical system forms images of the sign, the double photoconductive resistance detects the excursion of the sign, a / d converter finishes a / d convert, the data is fuzzy processed by micro computer
光電探頭採用激光二極體作為光源,光學系統完成標志的成像,雙光敏電阻檢測標志線的偏移, a / d轉換器完成偏移信號的模數轉換,數據由微機進行模糊處理。In contrast to pulsed discharge without preionization, the working voltage of the laser falls about 20 % and the electro - optical efficiency is improved approximately 30 %
和無預電離的脈沖放電相比,激光器的工作電壓下降了大約20 ,電光轉換效率提高了大約30 。In this dissertation the operation mechanism of pulsed - preionization diffusive cooling co _ 2, laser is studied. pulsed preionization technology is put forward to improve the stability of discharge, decrease the operating voltage, and enhance the electro - optical efficiency
本文研究了脈沖預電離的擴散冷卻co _ 2激光器的運轉機理,提出採用脈沖預電離技術改善縱向脈沖放電的穩定性、降低工作電壓和提高電光轉換效率。A serious factor, which influences on limiting energy characteristics of the modem large laser facilities for realizing inertial confinement fusion ( icf ), is an appearance of destructive effects in the frequency conversion crystals of large aperture placed in to the beams
在為實現慣性約束聚變( icf )而進行現代大型激光驅動器的設計時,限制能量特性的一個關鍵因素,就是光路中大口徑諧波轉換晶體上所出現的破壞性非線性效應。分享友人