激光諧波 的英文怎麼說
中文拼音 [jīguāngxiébō]
激光諧波
英文
laser harmonic- 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) ...
- 諧 : Ⅰ形容詞1 (和諧) in harmony; in accord; in tune 2 (詼諧) humorous Ⅱ動詞(商量好; 辦妥) come t...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 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; ...
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Its tunable wave - region is over 100nm ( 701 812nm ) with the characteristics of simple manufacture and compact structure ; pulse with high energy can be obtained through q - switch for longer life ( 260us ) particles in upper level in this paper, tunable and q - switch mechanism and principle of working material alexandrite ( cr3 + : beal204 ) is firstly expatiated and analyzed. the experiment of tenability ( et ) and experiment of q - switch ( eq ) is proved feasible
該激光器波長在701 - 826nm之間,製作容易,結構緊湊;上能級粒子壽命長( 260 s ) 、調q容易得到大能量輸出本論文首先對激光工作物質?紫翠寶石( cr ~ ( 3 + ) : beal _ 2o _ 4 )的調諧與調q原理和機制進行了解釋與分析,確定了調諧與調q實驗的可行性。If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g
如果通過激光冷卻能使原子速度降至很小甚至為零,光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處,其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小,因此,如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。Laser diode or flash lamp pumped solid state lasers with different wavelength and different operating styles. wavelength tunable laser sources with tial2 o3 laser and optical parametric oscillator laser application machines with laser display, laser material procession
各種波長及各種運轉方式的激光二極體及閃光燈泵浦的固體激光器;採用鈦寶石及光學參量振蕩器的波長可調諧的激光光源;激光應用整機。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。By improving the conventional electric - arc fusion method, we have realized the splicing between two kinds of mofs and smf with relatively low splice losses. we have written fiber bragg gratings in grapefruit mof successfully. the multi - wavelength resonances are observed in the grating, and theoretical analysis shows that this phenomenon is caused by the resonances between core modes and cladding modes
在此基礎上對微結構光纖光柵進行了理論和實驗研究,在柚子型光敏微結構光纖上成功寫制了布拉格光柵,觀察到多波長的反射峰,並利用全矢量有限元方法對微結構光纖布拉格光柵中的多波長諧振現象進行了理論分析,最後在實驗上對其在多參量傳感和多波長光纖激光器件中的應用進行了嘗試。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。This thesis was divided into eight chapters, and the main results and innovations obtained here can be summarized as follows : ( 1 ) the physics model of tsrs in frequency conversion crystals has been built up firstly. based on quantum - mechanical viewpoints and the following physical processes and parameters : the two - photo interaction of light with matter, paraxial diffraction of stokes, langevin noise sources, reflection at the faces and the edges of crystals, gain coefficient, beam aperture, pulse width and fluence of 3, the physics model of tsrs in kdp and kdp crystals acting as high - fluence frequency convector and the paraxial operator maxwell - bloch - langevin equations have been built up
全文共分八章,取得的主要成果及創新點如下: ( 1 )首次建立了諧波轉換晶體的tsrs物理模型本文根據量子力學原理,在考慮如下物理過程和參量的基礎上:光與物質的雙光子相互作用; stokes光的傍軸衍射; langevin (郎茲萬)噪聲源;晶體表面反射和端面反射;增益系數、光束口徑、脈寬和三倍頻光能量密度,推導出高通量激光在kdp和kd ~ * p諧波轉換晶體中的tsrs物理模型和空間上的近軸算符maxwell - bloch - langevin方程組。Harmonic - generator laser
諧波振蕩激光器One of china ' s largest distributors of laboratory equipment and laser system for major foreign companies
環球科技代理國外半導體可調諧,飛秒皮秒,固體激光器及波長計光譜儀等,具備豐富的售後服務經驗。In addition, the time - width of pulse also influences hhg. to some extent the spectrum of hhg will become be tter when the time is prolonged
另外,激光脈沖時間的長短也會影響到高次諧波的性質,在一定范圍內,隨著脈沖時間的加長,電離率逐漸增大,譜線結構也越來越明顯。Some researches about frequency doubling are made, and two methods to improve intensity of second frequency generation are given. we realized q - switched 532 nm laser, by using nd : gdvo4 as laser crystal, using cr4 + : yag as saturable absorber, using ktp as intra - cavity frequency doubling crystal. average power of 109mw, repetition of 40khz, pulse width of 30ns, pulse energy of 2. 6uj, peak power of 91w are obtained
4 .對倍頻理論進行研究和分析:討論兩種提高二次諧波功率密度的方一法;實驗匕在國內首次實現ld端面泵浦nd : gdvo4 / ktp ,用cr4 + : yag作為可飽和吸收片的綠光激光器,腔內倍頻得到了平均功率為109mw 、重復頻率為40khz 、脈寬為3ons 、單脈沖能量為2 . 6閃、峰值功率為glw的調q綠光輸出。Continuous - wave optical parametric oscillators ( cw opos ) are an attractive source of coherent radiation in applications for which laser sources are unavailable or for which wide tunablity is needed, cw opos have remarkable features of operating with narrow linewidth and broad tunablity
連續波光學參量振蕩器( cwopos )可以用來拓寬激光的波長范圍,有較寬的調諧區域,是一種理想的產生相干輻射的裝置。由於它的窄線寬和寬調諧的輸出特性,也被用於光譜學、相干光通訊、量子光學等領域。Using fiber grating to substitute traditional wavelength - selecting components, the 8nm tuning range is realized at a repetition frequency of 2. 5ghz. ( 5 ). the wavelength - tuning methods of an active mode - locked fiber laser using a ld as a modulator are researched, and two tuning methods including temperature tuning
( 4 )對主動鎖模光纖激光器的波長調節技術進行了研究,用光纖光柵代替傳統的波長選擇器件實現了主動鎖模光纖激光器的波長調諧,並獲得了波長連續調諧范圍達8nm 、重復頻率2 . 5ghz的穩定的光脈沖輸出。Lts lil1ewidth is less than 2. 33khz in its full wavelength tuning range
92urn ) 。在波長連續調諧范圍之內,其輸出激光線寬均在2The rf discharge excited waveguide co2 laser has been the suitable light source of lidar, because of its low volume, high efficiency and the particular wavelength
由於射頻激勵波導co _ 2激光器體積小、效率高、調諧范圍寬、波長正處于大氣透射窗口等獨特優勢,它已成為激光雷達等應用的理想光源。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。As the key component of multiplexer / demultiplexer, optical filter technology has been fueling great interest with the emergence of wide range tunable laser source, all - wave fiber, and wide band optical amplifiers, which is promoting dwdm to a leading edge of optical fiber communication
隨著寬可調諧激光光源、全波光纖和超寬帶光放大器的出現,密集波分復用日益成為光纖通信的主流技術,作為復用/解復用器核心的光濾波技術備受關注。In this paper, we summarize the present testing level of optical aspheric surface, expound the principle of laser wavelength scanning interference testing method, and analyze the laser that can be tuned, and we also study the change of wavelength. further more, we achieve the elementary design of experiment device, curtly introduce the method for interference fringe processing and image processing by matlab
本文對目前國內外的光學非球面的測量現狀作了概略的敘述,給出了激光波長掃描干涉測試方法的原理,對波長可調諧的激光光源進行了分析,對激光器波長的變化進行了研究,對實驗裝置進行了初步的設計,對干涉條紋圖處理方法進行了研究,並通過編寫matlab軟體語言對干涉圖進行了數字化處理。In this paper, we summarize the present testing status of optical aspheric surface, expound the principle of laser wavelength scanning interference testing method, and analyze the laser that can be tuned, and we also study the change of wavelength. further more, we achieve the elementary design of experiment device, and curtly introduce the method and principle for interference fringe processing
本文對目前國內外的光學非球面的測量現狀作了概略的敘述,給出了激光波長掃描干涉測試方法的原理,對波長可調諧的激光光源進行了分析,對激光器波長的變化進行了研究,對實驗裝置進行了初步的設計,並對干涉條紋圖處理的方法和原理進行了簡單的介紹。The littrow grating tuning method is employed for the first time in double cladding fiber lasers. by tuning the angle of the grating, we have achieved a tuning range of more than 40nm. 6
( 5 )首次將littrow光柵調諧技術應用到摻雙包層光纖激光器中,實現了可調諧包層泵浦光纖激光器,波長可調諧范圍大於40nm 。分享友人