激光導向器 的英文怎麼說

中文拼音 [jīguāngdǎoxiàngqì]
激光導向器 英文
guiding laser
  • 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） ...
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 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; ...
  1. The high - power semiconductor quantum well ( qw ) laser is a kind of luminescence device with superior performance, it has longe - lived, low threshold current density, high efficiency, high luminosity and excellent monochromatic, coherence, directionality, etc. the high - power semiconductor laser is widely applied to the fields, such as military, industrial machining, communication, information processing, medical treatment, etc. the material ' s epitaxy is the foundation of the whole laser ' s fabricating, and it has important influence on the optics and electricity performance about the laser

    大功率半導體量子阱激光器是一種性能優越的發光器件，具有壽命長、閾值電流密度低、效率高、亮度高以及良好的單色性、相干性、方向性等特點，廣泛應用於軍事、工業加工、通信及信息處理、醫療保健等領域。材料的外延生長是整個激光器器件製作的基礎，對器件的光學和電學性能有著重要的影響，生長不出優質的材料體系，獲得高性能的器件就無從談起，因此，材料的外延生長便成為了整個半導體激光器製作過程之中的重中之重。
  2. The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro

    激光陀螺的核心部件為he - ne環形激光器，而掌握光與介質的相互作用理論是研究激光器的關鍵，採用拉姆半經典理論為主，在密度矩陣理論的基礎上，推導環形諧振腔中描述he - ne氣體增益介質原子運動的光學布洛赫方程，運用介質極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組，在此基礎上，運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ，對激光陀螺中的介質增益色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性進行模擬試驗研究，並且運用全量子理論，對激光工作原理進行分析，得出二能級系統單模輻射場的光子數密度分佈，得出激光場的光子統計分佈，模擬激光場的動態建立過程。
  3. It was based on the principle of laser confocal microscope. and the two - dimensional scanning configuration was adopted by the optical scanner and the telecentric linear imaging objective lens of large numerical aperture to realize x - direction ' s scanning, and the conventional mechanical method using linear driver and linear guide track to y - direction ' s. the experiment results indicate that the device can run smoothly and rapidly, be operated easily and detect fluorescence effectively

    儀器基於激光共焦顯微鏡的理論，採用振鏡和遠心線性成像物鏡實現x向掃描；精密導軌和步進電機實現y向掃描的檢測儀，經驗證，掃描儀具有快速、操作簡單、檢測晶元能力良好等特徵，有望彌補市場的空缺。
  4. 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 。
  5. In the region of materials processing with high power diode laser array, people should couple the beam from diode laser with optical fibers in high efficiency

    本課題的目的是:通過大功率半導體激光器與光纖的雙向耦合，建立新型相干耦合的高光束質量大功率半導體激光器，以獲得高的焊接速度和良好的焊接質量。
  6. The high efficiency and high power semiconductor laser with multi - active regions, which are cascaded by reverse biased tunnel junction ( s ) can resolve the problems in theory and overcome these shortcomings

    通過反向偏置隧道結將多個有源區再生耦合級聯起來的新型高效大功率半導體激光器從理論和實踐上解決了傳統激光器存在的上述問題。
  7. We find that there usually exist peaks in the electric derivative curve and optic derivative curve of high power semiconductor laser, these two kinds of peaks are related properly, the peaks with reliability of device. while the peaks with relation with the reliability of device, while the peaks with same direction are usually related to the inner defects, same directin are usually related to the inner defects, carrier leakage and current leakage, so, the device with same direction peaks is usually unreliable one

    （ 2 ） m 、 h值大， b值小的器件是質量和可靠性不好的器件（ 3 ）導數曲線上的峰與光導數曲線上的峰相對應，反向峰通常與器件的可靠性無關，而同向峰的存在於器件的質量和可靠性密切相關，有同向峰的器件通常是質量不好的器件，這類器件老化后特性明顯變差，這意味著導數曲線上的同向峰可以作為高功率半導體激光器可靠性篩選的一個輔助判據。
  8. The following important work has been done : ( 1 ) some special problems of rate - bias laser gyro were analysed. the problems include modulation and demodulation of the output and algorithm of the attitude updates ; ( 2 ) the integrated navigation system with the fault tolerance property which equipped with many navigation equipments as sins, gps, dvs, ads, mg, vg is designed, and compared with that of ckf via simulations ; ( 3 ) the theories and methods of system level fault detection apply to federated filtering is investigated ; ( 4 ) the problem about using the fused information of sins based on rate - bias laser gyroscope / dynamical tune gyroscope to realize the component level hard fault interactions detection through a back - propagation neural network is discussed

    主要研究工作有：研究了速率偏頻激光捷聯慣導的陀螺測量信號的解調演算法；設計了在速率偏頻激光捷聯慣導、 gps 、多普勒雷達、大氣數據系統、磁航向儀及垂直陀螺配備條件下聯邦濾波組合導航系統，對聯邦濾波器和集中濾波器的性能做了模擬對比分析；研究了適用於聯邦濾波器的系統級故障理論和方法；探討了利用速率偏頻激光捷聯慣導撓性捷聯慣導陀螺的混合測量信息，通過神經網路實現硬故障交互檢測的方法。
  9. The self - q - switched pulses of high erbium - doped fabry - perot cavity fiber laser are observed and theoretically analyzed. ( 2 ). utilizing the non - linearity characteristics of single mode fiber - back stimulated brillouin scattering ( bsbs ) and the wavelength - selecting characteristics of fiber gratings, self - q - switched pulses are achieved from a linear cavity erbium - doped fiber laser pumping by a 980nm ld continue wave ( cw ) pumping, the pulse width is 2. 2ns and the repetition frequency of pulses is 64. 5mhz

    （ 2 ）利用單模光纖的非線性效應背向受激布里淵散射（ bsbs ）和光纖光柵的選頻特性，採用980nm半導體激光器連續泵浦方式，在線性腔摻鉺光纖激光器中實現了自調q運轉，獲得脈沖寬度（ fwhm ）約為2 . 2ns ，重復頻率為64 . 5mhz的穩定的光脈沖輸出。
  10. One of the challenges in laser vision correction is that your eyes are never perfectly still

    眼球追蹤器是引導激光準確射向角膜應射的地方。
  11. Once again, rival technology for manned aircraft stole the thunder : stealthy designs to reduce the radar signature, precision weapons such as cruise missiles and laser - guided munitions and new sensors such as synthetic - aperture radar that could look through clouds

    對手的人工駕駛飛機的科技再一次先聲奪人：為減少雷達信號而進行的秘密設計、諸如巡航導彈與激光導向的軍需品之類的精密性武器，以及一些新型傳感器，諸如可透視雲層的合成光圈的雷達。
  12. Secondly, basing on the theory of on - off gain of small signal, the raman gain coefficient for frequency shift between 0. 5 and 20 thz of standard sigle mode optical fiber is measured by pump - probe method through a super luminescent diode ( sld ) as a broadband small signal probe source. thirdly, numerical simulation analysis of gain characteristic of raman fiber amplifier for c band wdm signal light is made according to the raman gain coefficient of the fiber measured before through target and four rank runge - kutta method. at the invariability of wavelength and maximum power of each of two pumps, schematic of powers of two pumps for best flatness on c band wdm optical gain was found out, at the same time, the factors of resulting in gain saturation is analyzed, too

    本文首先應用經典的電磁理論對拉曼光纖放大器的工作機制進行了分析，然後，根據小信號理論推導出的開關增益求出了光纖拉曼增益系數的表達式，採用泵浦-探測波的方法，利用超輻射激光二極體（ superluminescentdiode簡稱sld ）作為探測光源，測量了所用標準單模光纖頻移為0 . 5 - 20thz的拉曼增益系數，之後根據所測得的光纖的拉曼增益系數譜對應用該類光纖構成的放大c波段wdm光信號的拉曼光纖放大器的增益特性採用打靶法和四階龍格- - -庫塔進行了數值計算，在給定了兩個泵浦光源的波長和最大功率后，找出了反向泵浦情況下使c波段wdm光源增益最平坦的兩個泵浦的各自最佳功率，同時也分析了導致信號光飽和的原因。
  13. This thesis describes some work on improving the performance of lasers, which i have carried out during the past three years. follows are the main points : 1. both littrow and littman set - up of 800nm - band external - cavity diode laser systems are studied

    本論文本著追蹤發展、面向應用、有所創新的原則，在改善激光器性能方面做了一些工作，主要包括： （ 1 ）對800nm波段littrow和littman結構的弱耦合可調諧外腔半導體激光器進行了實驗研究。
  14. The maximum one side output power of uncoated lasers attain to 2w and the minimum threshold current is 120ma. thereafter, algalnp and algaas material system lateral real refractive index waveguided 650nm / 780nm double wavelength multiquantum well lasers for dvd - rom driver and dvd player ' s optical pickup system are simulated and designed on the basis of the experiment of conventional lasers and the former research of tunneling cascade devices

    在此之後，結合650nm附近波長的常規algainp gaas多量子阱激光器的實驗結果與以往隧道級聯器件的研究，設計並模擬分析了基於algainp材料與algaas材料的可用於dvd - rom驅動器和dvd播放機光學讀取系統的側向實折射率導引隧道級聯650nm 780nm雙波長多量子阱激光器。
  15. Being the main aspect of inertial navigation system, strapdown inertial navigation system ( sins ) based on ring laser gyroscope ( rlg ) has been applied in the refitment of service weapons and the development of new weapons

    激光陀螺捷聯慣導系統是當今慣導系統發展的主要方向之一，已經廣泛地應用於現役武器裝備改造和新型武器系統研製過程。
  16. In this paper, after studying the technology of virtual instrument and the characteristics of ld, we developed the ld test system using the design idea of virtual instrument 。 the system is mainly used for test the threshold current, differential efficiency, v - i characteristic and p - i characteristic of ld module

    本課題在對虛擬儀器技術和半導體激光器各項性能參數深入研究的基礎上，採用虛擬儀器的設計思想，研究開發了基於虛擬儀器技術的半導體激光器特性參數檢測系統。該系統主要面向組裝后的激光二極體組件，對其進行電流閾值（ ith ） 、光電特性（ p - i ） 、電抗特性（ v - i ）等主要特性的測試。
  17. Abstract : the theoretical investigation of the coupling efficiency of a laser diode to a single mode fiber via a hemispherical lens on the tip of the tapered fiber in the presence of possible transverse offset and angular mismatch is reported. without the misalignment, coupling efficiency increases with the decreasing of taper length. with the misalignment, this relation is that the coupling efficiency decreases with each kind of offset

    文摘:介紹了一種用於半導體激光器-單模光纖耦合的圓錐端半球透鏡的耦合效率的理論計算.失配不存在時，耦合效率隨著錐長的增加而減小.失配存在時耦合效率隨軸向和角向失配的增大而減小
  18. The direction of my thesis is creating a new type coherent coupling diode laser array with high optical quality by bidirectional coupling with optical fiber array. thus the welding quality and welding speed can be improved. in my research experiments, the cylinder fiber lens is used as a coupling lens system firstly

    本課題首先使用柱透鏡耦合方案作為雙向耦合的先行方案，使用光學設計軟體模擬半導體激光器的光斑在經過光纖柱透鏡后的整形變化，指導了使用光纖柱透鏡進行大功率半導體激光器列陣與光纖密排陣列耦合的方法。
  19. In this paper, a compact design of rf discharge excited waveguide co2 laser is presented, which is used as the master oscillator in the lidar

    給出一種緊湊型橫向射頻激勵波導co _ 2激光器的設計，用作激光雷達的主振激光器光源。
  20. 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
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