輸出光束能量 的英文怎麼說
中文拼音 [shūchūguāngshùnéngliáng]
輸出光束能量
英文
output beam energy- 輸 : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
- 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) ...
- 束 : Ⅰ動詞1 (捆; 系) bind; tie 2 (控制; 約束)control; restrain Ⅱ量詞(用於捆在一起的東西) bundle;...
- 能 : 能名詞(姓氏) a surname
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 輸出 : 1 (從內部送到外部) export 2 [電學] output; outcome; outlet; out fan; fanout; 輸出變壓器 output ...
- 能量 : 1 [物理學] energy; amount of energy 2 (能力) capabilities; capacity; 能量不滅 conservation of e...
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This system uses a ring structure instead of complex multiangular optics structure. stimulate raman scatter is used to combine laser beam and it also improve the quality of laser beam
採用這個激光能量儲存環技術能提高準分子激光放大超短脈沖激光的效率,獲得高功率,高束質的激光輸出。The multi - pass amplifier was being adopted proverbially, which could improve the output energy consumedly. but on the other hand the beam quality was degraded by the severe wave - front ' s aberration that exacerbated by multi - passing the beam through the amplifier
多程放大系統因能夠較大提高系統的輸出能力,故得到較為廣泛的應用;但由於多程放大級各類波前誤差的相干疊加,使系統輸出激光的波前發生比較嚴重的畸變,導致光束質量的下降。The influence of field on output factor when the jaws are unfixed
放療用高能電子束光欄不固定限束方式下照射野大小對輸出量的影響As the extensive application of the semiconductor laser diode ( ld ), it become more and more important to evaluate the quantity of laser beam. far - field divergence angle of laser beams is an important parameter about value of laser quality. not only the laser divergence peculiarity in the distance is reflected, but also quality of the correlative laser apparatus and the laser transmission is exactly known
隨著半導體激光器日益廣泛的應用,對激光光束質量的評價越來越重要,而激光光束遠場發散角是評價激光質量的一個重要參數,它不但能反映遠距離傳輸時的激光發散特性,而且能準確評估出半導體激光器的品質及激光的傳輸質量。It is well known that nonlinear self - focusing effect is one of the important factors to limit icf laser energy and worsen beam quality
實踐表明,非線性自聚焦效應是限制icf驅動器激光輸出能量及破壞光束質量的主要因素之一。Because of the intrinsic fractional absorption of the laser energy with the conventional solid output windows for high energy lasers ( hel ), the optical quality will be degraded, or the overall hel system cannot run at all when the laser energy are far higher, or the system runs longer time
然而,由於高能激光器傳統的固體輸出窗口具有不可避免的部分吸收作用,因此,當輸出激光功率很高,或激光器長時間工作時,固體輸出窗口就會產生熱畸變、甚至炸裂或被擊穿,從而影響輸出激光的光束質量或使高能激光器根本無法工作。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 。After measured the laser energy distribution of kunming slr station, the parameters of this non - gassian and non - spherical symmetric laser beam were deduced according to correlation definition. applying its laws and deduced laser beam parameters, the change of laser beam dirvergence angle was studied in detail when adjusts transmission system focus. moreover, calculation based on these measured data indicates that the laser shaded by the second mirror of telescope is amazingly up to 39. 8 %, an optical element was designed for the settlement and it worked satisfactorily when put it into practice
之後測量了雲南天文臺激光的橫向能量分佈,根據相關定義確定了這束非高斯非球面激光的參數,應用它的傳輸變換規律和測量參數研究了調焦中激光發散角的變化,並根據測量數據計算出激光發射時副鏡擋光比例達到驚人的39 . 8 ,研製出光劈解決這一問題,取得了很好的效果。In fact, laser beam quality is a main parameter that has key action on laser materials processing from the beginning to the end. in this dissertation, the parameter used to evaluate laser beam quality is proposed. the influence of beam quality on beam propagation and focus are studied in theory and measurements separately
本文以光束質量為主線,研究了光束質量對激光製造技術貫穿始終的重要作用,提出了以描述激光束聚焦特性為核心的光束質量評價參數;理論分析,並實驗驗證了光束質量對光束傳輸和聚焦性能的影響;最後,以激光焊接為實例,研究了光束質量對激光加工過程的影響。Due to the inevitable absorption of crystal window, the crystal window will be distorted even burst while the power of high energy laser apparatus is several hundred thousand watt even mega - watt, so the quality of laser beam will be influenced and the laser apparatus will not work properly
由於晶體材料窗口不可避免的部分吸收作用,對于目前幾十萬瓦甚至兆瓦級的高能激光器來說,晶體窗口會產生熱畸變甚至炸裂,從而影響輸出光束質量甚至使激光器根本無法工作。How to improve the output energy and beam quality were two most noteworthy problems in the building of high power solid - state laser facility
提高系統能量轉換效率與輸出光束質量一直是研製高功率固體激光系統極為關注的兩類重要問題。Applying 200 m quartz fibers in the ld - pumped laser system with double - pass configuration, 57 % sbs reflectivity, near 92 % sbs fidelity and 85 % relative stability have been obtained. and high beam quality of phase - conjugated laser close to that of oscillator has been achieved
應用200 m光纖經雙通放大最高可獲得57的能量反射率、 85的相對穩定性以及92的相位共軛保真度,並觀察到激光系統的輸出光束質量被顯著改善。The theoretical analysis shows that mz - ifog can be used to detect the rotation rate of moving objects. a systematic analysis of transfer characteristics of mz - ifog is made. performance - limiting factors, including the path - length difference, the disturbance of temperature fluctuation and stress from working environment, the quality of light source, are all discussed along with methods to reduce their effect on the output signal
本文用系統的方法分析了mz型干涉式光纖陀螺儀的光傳輸特徵,指出了其較大的非互易性因素-臂長差的存在,分析了工作環境因素(溫度,應力) 、光源質量(輸出光束中心波長、光功率波動及偏振態波動)對系統工作性能的影響,並指出了減少系統非互易因素、抑制噪聲、提高檢測穩定性的措施。The reasonability of fadw designing should be proved experimentally, so this paper studies the various running properties of the fadw whose output window ' s size is 30mmx30mm experimentally. it uses the methods of the far - field beam profile measurement, the lateral shearing interferometer ( lsi ) and the hartmann - shack wavefront sensing to measure the window ' s optical qualities when the fadw works in the situations of different inlet total gas pressure
夏克波前傳感器分別對現有的口徑為30mmx30mm的氣動窗口的光學特性和對輸出激光光束質量的影響進行了實驗測量和分析,同時建立了氣動窗口的性能測量的實驗方法,並分析了fadw對輸出激光影響的物理機制(如類透鏡效應等) 。Portable intellective transfer facility replaces the ordinary gravity transfusion by using the mini - electromotor, so it can accurately control the speed and quantity of the transfusion. by supervising the transfusion process, when abnormal cases happened, such as a pipeline jam or danger air bubbles, it can rapidly shut down transfusion way automatically in order to prevent the accidents caused by transfusion. the facility could stop automatically when the transfusion end up and reminds patient or paramedic by sound and lamplight
便攜式智能輸液設備以微型電機代替普通的重力輸液,能夠精確控制輸液速度和輸液量;對輸液過程進行監測,當出現如管路堵塞、有危險氣泡等異常情況時,能夠迅速地自動關斷輸液通路,防止輸液事故的發生;輸液結束后自動停機,並通過聲光提醒病人或護理人員;具有攜帶方便,操作簡單等特點。The tuning curve of type - i phase matching of bbo opo are measured with accuracy ; the maximum conversation in total of the system is about 31 % at 615. 6 nm, and it is fitted well with the gtp formula ; in the end we compared the output linewidth and unstable cavity far field beam qua lity of the bbo opo under the condition of type - i phase matching and type - ii phase matching, it is proved that we can obtain the parametric output of linewidth less than 0. 3 nm and the beam divergence angle approaching diffraction limits by take the advantages of type - ii phase matching and unstable cavity designs
測量了該系統的轉換效率最大為31 ,並能與理論公式極好地吻合,最後比較了在類相位匹配條件下和類相位匹配條件下的bbo - opo的輸出線寬,以及非穩腔的遠場光束質量,實驗結果表明,利用類相位匹配以及非摘要穩腔設計可以獲得線寬小於0 3nlm 、光束發散角接近衍射極限的參量光輸出。Starting from maxwell ' s equations, the paraxial propagation equation of intense laser light in ionizing gases is derived and is analyzed by means of the source - dependent expantion ( sde ) method. an equation governing the evolution of the laser beam redius is obtained, based on which we analyze the ionization - modulation ( im ) instability. then, a vectorial, nonparaxial propagation equation is established, and the mechanism of energy loss during the propagation is analyzed
首先從maxwell方程組出發推導出強激光在電離氣體中傳輸的傍軸傳輸方程,利用源展開方法對傍軸傳輸方程進行分析,得到光束半徑的演化方程,從而討論傳輸過程中的電離調制不穩定性;再建立矢量非傍軸模型,並討論氣體電離產生等離子體所引起的激光能量損耗機制。The binary optical elements are small, light, easy to be copied and able to realize multi - purpose integrated, especially suits for the beam shaping of laser diode array, thus make us choose it for realizing our system. because single module gaussian beam can be decomposed in a pair of vertical directions, we transform each pair of vertical beams outputted by bars separately, this can make our design easy to achieve
可實現多功能集成等特點,特別適用於半導體激光器列陣的光束整形,因此我們選用二元光學器件來實現耦合系統?利用半導體激光器輸出的基模高斯光束可分離變量的特點,我們對面陣中各吧的兩個相互垂直方向上的光束分別進行整形變換,這樣整形器件可以設計成一維結構,便於實現( 3 ) properties of yag laser q - switching by sbs were experimentally investigated, and the laser without back reflective mirror was devised, and laser pulse was obtained at repetition rate ihz and 5hz by optimizing lens focal length, length of cell and position of lens focal. point, resulting quality of pc is ideal
( 4 ) 、實驗研究了sbs的yag激光器,設計了無後向反射鏡的sbsyag激光器。在泵浦能量17j 、重復頻率分別為1hz 、 5hz時,得到穩定輸出的能量為19mj 、脈寬為10 . 7ns 、光束質量很好的激光脈沖。And the pulse duration was compressed from 420 to 220fs by compensated gvd broadening with prism pairs, the intensity achieved on target reached 1017w / cm2. furthermore, the 50mj uv pulse was boosted to 2 - 3j by e - beam pumped amplifier, the laser power reached as high to 2tw
並採用「天光一號」電子束泵浦krf激光器進行紫外超短脈沖激光的進一步放大,獲得能量2 3j 、脈沖寬度約1 . 2ps的紫外超短脈沖激光輸出,激光功率達到2tw 。分享友人