晶體激光器 的英文怎麼說

中文拼音 [jīngtǐjīguāngqì]
晶體激光器 英文
crystal laser
  • 晶 : Ⅰ形容詞（光亮） brilliant; glittering Ⅱ名詞1. （水晶） quartz; （rock） crystal 2. （晶體） any crystalline substance
  • 體 : 體構詞成分。
  • 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
  • 晶體 : [晶體學] crystal; vitrella; crystal body; crystalloid; x-tal
  • 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. We have grown ingaas / algaas strained quantum well laser by mbe. we studied the doped density in the cladding layer

    採用分子束外延設備mbe （ molecularbeamepitaxy ）對所設計的應變量子阱結構激光器進行晶體生長。
  2. The laser damage threshold of the ybyp _ xv _ ( 1 - x ) o _ 4determined by nd : yag laser, which showed a decreasing tendency with the increase of the dopant concentration

    利用nd : yag激光器測試晶體的激光損傷閾值，隨著摻雜離子濃度的增大，激光損傷光功率密度呈減小趨勢。
  3. With the development of science and technology, more and more oxide crystals are synthesized by more and more advanced technique, the new oxide crystals are incessantly synthesized and the new characters of oxide crystals are incessantly founded. corundum dopped with impurity not only is cherished because of it ' s beautiful appearance, but also is used in the fields such as electrotechnics, mechanism, laser, the optic apparatus and the underlay of semiconductor. sapphire dopped with ti3 + is the best material of the tunable solid laser. zno crystal is material of the direct gap semiconductor ( the width of forbidden band : 3. 37ev ). the excited emission in zno crystal at room temperature has been found, so the ultraviolet luminescence in zno semiconductor can be acquired at room temperature

    含有少量雜質的剛玉晶體（ - al _ 2o _ 3 ）不僅由於其色澤艷麗成為人們珍愛的名貴寶石，而且由於它具有的優異性能，被廣泛應用於電工、機械、激光器，光學器件和半導體襯底材料。鈦藍寶石是目前最優異的固體寬帶調諧激光材料，用於製作飛秒脈沖可調諧激光器。氧化鋅晶體是直接帶隙寬禁帶半導體材料（禁帶寬度3 . 37ev ） ，現已發現具有室溫下受激發射特性，有可能實現室溫下半導體紫外發光。
  4. Firstly, we analyze the character of nd : yag, bbo and lbo, for nd : yag crystal and select the nd : yag as the gain medium and lbo as doubling - frequency crystal. ln the theory, analyzing the parameter of the gain medium length, the ratio of the pump - and laser - beam waists. based on the above analysis, we design the resonance cavity

    首先，我們對增益介質的性質和非線性晶體bbo和lbo的一些性質進行了比較，選取nd ： yag作為增益介質， lbo作為倍頻晶體。理論上分析了激光器設計中的一些參數值，如增益介質長度、模式交疊率、最佳倍頻條件，並根據理論分析結果設計了諧振腔。
  5. The stability output second harmonic generation ( shg ) experiment results of single - longitudinal mode and multi - longitudinal mode with long cavity were explained reasonably with these rate equations. the high polarization of fundamental wave in the isotropic laser media nd : yag with type - i critical phase - matching lbo was studied with the rate equations including polarization of fundamental light. using the polarization function of lbo, a quartz full - wave plate was introduced into the cavity, a kind of birefringent filter by considering the combination of the polarization function of the type - i critical phase - matching doubling frequency crystal lbo and the quartz whole - wave plate was constructed

    將腔內多縱模倍頻速率方程推廣應用到準三能級藍光激光器中，分析了一個縱模、兩個縱模、多個縱模時的噪聲情況，合理地解釋了實驗中激光器單縱模運轉以及長腔多縱模運轉時穩定輸出的實驗現象，同時利用該速率方程分析了以各向同性激光晶體nd : yag為工作物質，類臨界相位匹配lbo為倍頻晶體的藍光激光器中基頻光偏振特性，合理利用類臨界相位匹配lbo倍頻晶體的偏振特性與引入的石英晶體全波片構成雙折射濾光片，通過選單頻來抑制噪聲，獲得了藍光低噪聲的穩定輸出。
  6. 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 。
  7. The results show that the coupling efficiency is affected obviously by the fiber inclined angle, which can be improved if we choose the angle properly

    結果表明，不同的光纖斜端面角度下，對半導體激光器的耦合效率影響很大，根據不同的晶元參數合理選擇不同的斜端面光纖可以得到盡可能高的耦合效率。
  8. 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。
  9. Recently, with the development of good quality nonlinear frequency - conversion crystals and solid - state laser used as pump source, research activities in this area is heating up

    近年來，隨著高質量非線性頻率變換晶體和固體激光器抽運源的快速發展，這一領域的研究異常活躍。
  10. Diode - pumped solid - state laser ( dpl or dpssl ) is solid - state laser, used laser diode ( ld ) instead of flash lamp to pumping laser media. comparing with flash lamp, it has a lot of advantages, such as high efficiency, reduced size, compactness, stabilize and longer lifetime

    激光二極體泵浦的固體激光器（ dpl或dpssl ）是用激光二極體（ dpl ）代替閃光燈泵浦激光晶體的固體激光器，與燈泵浦相比，具有效率高、體積小、結構緊湊、性能穩定、壽命長等優點，已成為當今固體激光器發展的主要方向。
  11. Compared with the traditional lamp - pumped solid - state lasers, the diode - pumped solid - state lasers ( dpssls ) have many advantages such as high efficiency, long lifetime, all - solid - state, small size and little heat effect, etc. of many kinds of dpssls, laser diode ( ld ) end - pumped nd : yag laser plays an important role and has been found wide applicatins in industry, mainly because of its good mechanical and optical properties of nd : yag crystal and good mode matching to output a fundamental transverse mode

    與傳統的燈泵浦相比，激光二極體泵浦固體激光器（ dpssls ）具有高效、長壽命、全固化、熱效應和體積小等優點。在眾多的dpssls中，激光二極體（ ld ）端面泵浦nd ： yag激光器在工業中起著重要的作用並得到了廣泛的運用，這主要歸因於nd ： yag晶體具有良好的機械和光學特性，而且端面泵浦具有良好的模式匹配，能獲得基橫模激光輸出。
  12. In the fourth chapter, the coupling system between the fiber - coupled - output high power semiconductor laser acting as the pumping source and laser crystal is studied

    第四章研究了作為泵浦源的光纖耦合輸出大功率半導體激光器與激光晶體間的耦合系統。
  13. The rate equations of theb3 + doped crystal laser in cw operation were solved. we analyzed several factorshich influenced the laser output and obtained the optimum value by calculation

    建立了摻yb ~ （ 3 + ）晶體激光器的速率方程，對影響連續激光器輸出功率的因素進行了分析，得到了各種優化值。
  14. Based on the rate - equation theory of four - level system, the expressions of threshold pump power, output power and slope efficiency are given. the influence of space distribution of pump light ( the position of focusing point, dimension of pumping light and divergence angle ) to the output characteristics are also discussed. then, by investigating the effects of thermal effect of laser crystal on the size of laser cavity mode, we obtain the mode - matching principle of high power laser diode end - pumped solid - state lasers

    其中，在泵浦光的空間分佈變量中我們分別考慮了泵浦光聚焦后的腰斑大小、聚焦腰斑在增益介質中的位置以及泵浦光在介質中發散角的影響；然後我們研究了在高泵浦功率下激光晶體因吸收泵浦光而產生的熱效應所導致的熱透鏡效應以及熱致衍射損耗，通過分析它們對振蕩激光腔模尺寸的影響，得到了高功率半導體激光二極體端面泵浦固體激光器模式匹配的要求，為高功率連續單頻nd ： yvo _ 4激光器的優化設計提供了理論依據。
  15. At present, ktp has been widely used in second harmonic generation ( shg ), sum ( difference ) - frequency mixing, optical parametric oscillators ( opo ) and optical parametric amplification ( opa )

    目前， ktp已作為一種商業化的晶體廣泛應用於中小功率固體激光器的倍頻（ shg ） 、和（差）頻、光參量振蕩（ opo ）和放大（ opa ）等。
  16. The method for third harmonic generation of large - aperture high - power solid laser is described which is the second nonlinear effect of two cascade crystals in this paper

    摘要敘述了大口徑高功率固體激光器，利用兩塊級聯晶體的二階非線性效應，對激光輸出進行諧波轉換，實現三次諧波輸出的方法。
  17. In the second chapter, the operating principle of solid - state laser is analyzed. based on the model of four - level system, the interacting theory between laser field and laser crystal is studied by the rate equation theory, then the characters, such as threshold power, output power, slope efficiency etc., of solid - state laser are deduced

    第二章分析了固體激光器的工作原理，以四能級系統為模型，應用速率方程理論研究了激光場與激光晶體之間相互作用理論，導出了固體激光器的閾值功率、輸出功率和斜效率等特性。
  18. A new laser diode driver based on a high - integrated laser driver chip is designed in this paper. this driver realizes the common work of a laser diode and makes it emit laser with stable power. furthermore, it can set the output laser power and modulate the laser signal by setting the modulation signal

    本文設計了一種基於高度集成化的激光器驅動晶元ic - wkn的半導體激光器驅動電源，該電源在實現半導體激光器正常工作並能夠發出功率穩定的激光的同時，能夠利用信號調節電路設定或調節激光器的輸出功率。
  19. Research progress of semiconductor photonic crystal lasers

    半導體光子晶體激光器的研究進展
  20. Ld pumped laser featuring with high - efficiency, sound quality, long lifetime, miniaturization, sound reliability and leading laser full - solidified, attracted great attentions from academic circles, industry field and military field. therefore, it is of great importance to develop new laser crystal

    Ld泵浦晶體激光器的高效率、高質量、長壽命、小型化、高可靠性以及實現激光器全固化等優越性，引起了學術界、產業界和軍方的高度重視，因而探索新型激光晶體的工作顯得非常重要。
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