laser output 中文意思是什麼

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 。

The influences of optical feedback and external cavity length on the laser output are studied, and the relation between fluctuations of speckle signal and the transverse velocity of rough surface is discussed

分析了隨機變化的反饋強度與外腔長度對激光光譜特性的影響。模擬了散斑干涉信號的波動與粗糙表面橫向移動速度的關系。

Measuring methods for laser output power

激光輸出功率的測量方法

Control with pc, has energy, display on functions. operating states and failures. parameters of laser output can be set up in advance

微機控制具有能量及時間顯示工作狀態顯示故障顯示，激光輸出參數可預先設定。

The subject mainly studies the splitting phenomena of laser longitudinal mode and the transmitted resonant mode of fabry - perot etalon using electrically controlled birefringence of liquid crystal, so as to find a new approach to obtain the dual - frequency laser output

本論文主要研究利用液晶的電控雙折射效應分裂nd ： yag激光縱模和f - p標準具諧振模，以尋求產生雙頻激光輸出的新途徑。

Laser output power before fiber coupling according to the coupling efficiency

4 .客戶可以依據光纖耦合效率來計算光纖耦合前激光器的

In two multi - mode lasers, the receiver laser output is synchronized to its input that is very different from the case in single - mode laser system. thus the receiver laser can not serve as a message filter

在這種情況下，接收器激光的強度輸出是和強度輸入同步的，這就和在單模激光系統中混沌通訊的情況不同，此時接收器激光就不能再充當信號過濾器了。

We use the laser output ( 320 nm, 200 fs ) of optical parametric amplifier ( opa ) in < wp = 5 > an active passive mode - locked femtosecond ti - sapphire laser operating at a repetition rate of 1khz as a exciting resource to develop optically pumped stimulated emission of zno thin films. when rectangular stripe laser irradiates thin films, optical resonant cavity is naturally formed between two nanocrystallites along with the rectangular laser stripe and planar weveguide confines the light scattering

利用飛秒激光器作為光泵浦激發光源，研究了氧化鋅薄膜的光泵浦受激發射，當條形光斑輻照薄膜樣品時，將沿著光斑條由氧化鋅納米晶面自然地形成光學諧振腔，由於平面介質波導結構限制光散射，所以成功地觀測到二氧化硅襯底上的納米氧化鋅（ zno ）薄膜的紫外受激發射。

The choice of laser output window height is relation to many factors, such as pressure loading, thermal loading, yield stress, influence on wavefront, failure by fatigue. spherical windows can endure higher laser intensity. however, it brings some phaseshifts, which connect with laser windows parameters

激光器輸出窗口厚度的選取與壓力載荷、熱載荷、材料極限強度、厚度對波前的影響、材料疲勞等多種因素有關，由於球殼窗口能承受較高的功率密度，但窗口本身帶來相移，該相移大小與窗口參數有關，根據位相均方根值選擇球殼窗口參數。

When a portion of light emitted from a laser source is reflected or scattered back into the laser cavity by an external target, the reflected light will mix with the light inside the cavity, causing a modulation of the laser output power

激光自混合效應是指激光器輸出的光被外部物體反射或散射后，其中一部分光又反饋回激光器的諧振腔，反饋光攜帶了外部物體的信息。與腔內光相混合后，會調制激光器的輸出，稱為自混合效應。

We propose and analyze an experimental scheme for studying the self - scanning effects of ce : batio3 phase conjugator. then we propose a tunable experimental scheme for p567 laser output using self - scanning effect

提出了研究ce ： batio _ 3自掃描特性的實驗方案，設計並討論了利用自掃描效應進行固態p567激光調諧浙江大學博士學位論文的實現方案。

Some important parameters, such as the small signal gain, the saturation gain and the laser output power, are described for a typical sealed - off co2 laser

然後，對典型的封離型二氧化碳激光系統，討論了小信號增益，飽和增益以及激光的輸出功率

Laser output stability

雷射輸出穩定度

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。

The technical breakthroughs in growth of nd : cngg had been made. in particular, continuous laser operation was achieved from nd : cngg pumped by ld. when the crystal wafer was end - pumped by one bar of ld with 807nm wavelength, the cw laser output power of 123. 1 mw was obtained with slope efficiency of 22. 3 %

本論文用自動化熔體提拉技術成功生長出< 111 >方向的直徑25mm以上，長度80mm以上的平界面無核心nd : cngg單晶，確定了晶體結構和物相，測量了晶體的光譜性能，晶體消光比達到34db ，晶體生長技術有新的突破，實現了連續激光運轉，用單支807nm半導體激光二極體端面泵浦該晶體片子，在國內首次獲得123 . 1mw的1 . 062 m連續激光輸出，斜效率達22 . 3 % 。

The kilowatt - class laser output have been realized using yb : yag crystal component by diode - pumped

採用中頻感應加熱提拉法生長yb : yag晶體。

In conclusion, when high power laser irradiation is used on monolayer cells, thermal effect might works in the central area and the photobiomodulation, which depends on the parameters of the laser output, might works in the rest

本文的研究表明，在用高強度激光束照射細胞單層時，激光束除了對細胞單層有局部損傷作用外，不同參數的激光束對存活細胞具有不同的光生物調節作用。

Inside cool water circulation system can guarantee invariance temperature, stable laser output power

內封閉製冷循環系統，循環水可保證恆定溫度，激光功率輸出穩定。

The effects of multi - grating diffraction result in enhancement of the diffraction efficiency in two - beam interference experiments. with self - pumped phase - conjugate external cavity of ce : batio3 for the cw ti : sapphire laser, the frequency shift of the laser output due to the self - scanning effect was observed, which approve the possibility of the self - scanning tunable method

同時位相共軛外腔還使得激光閡值由未加位相共軛腔時的4 . 7w下降到加位相共軛腔時的3 . 6w ，利用外腔理論對實驗結果進行了理論分析，理論計算結果和實驗結果基本符合。

When laser diode illuminates the rough surface moving transversally across the light beam, the feedback light forms the random speckle due to the random pattern of the target surface, causing random fluctuations in the laser output, which is called as self - mixing speckle interference

結合自混合和散斑的原理，將散斑現象引入半導體激光器。讓半導體激光器的光學反饋來自垂直地照射的粗糙表面，把光強調製成為隨機的散斑信號。