modulated laser 中文意思是什麼

modulated laser 解釋
已調制激光
  • modulated : 改變了的
  • laser : n 鐳射激光，受激發射光，激光；萊塞；激光器，光激射器 （ ＝ light amplification by stimulated emis...
  1. Modulated infra red laser diode 780 nm 5 nm

    可調紅外激光二極體，波長780 nm5 nm
  2. Modulated visible laser diode 650 nm 5 nm

    可調可見激光二極體，波長650 nm5 nm
  3. In order to improve the existing pr adaptive optical heterodyne detection system ( praohds ), a new praohds is proposed based on sppc and mppc coexistence. the experimental study of the system is completed by equal amplitude ar + laser beams, poorly coherent equal amplitude solid - state laser beams and high speed amplitude - modulated solid - state laser beams through distorting media. experimental results indicate that the new system is applicable

    為了改進現有的光折變自適應光外差探測系統（ praohds ） ，本文利用sppc和mppc同時共存的特性，提出了一種新型的praohds ，並利用ar ~ +等幅激光、相干性較差的固體等幅激光以及固體高速振幅調制激光對新系統進行了畸變光束的自適應光外差探測實驗研究，結果證明了新系統在實際應用中的可行性。
  4. Traditional laser iff has poor security because of low frequency of laser beam coded pulse. this can be greatly improved when the pulses are modulated by continuous wave laser, but the power of this laser beam output is so low that it ’ s difficult to be detected and received by laser warning subsystem

    傳統的激光敵我識別器激光編碼脈沖頻率低，通信保密性差，使用連續波激光器經調制后激光編碼脈沖頻率高，保密性好，但輸出激光功率較低，難以達到激光告警分機探測接收的要求。
  5. After that, according to thermal conduction theories of anisotropic materials that were irradiated with continuously modulated laser, a photothermal measuring method about the thermal conductivity tensor and the orientation of the principal axis of the conductivity of arbitrarily opaquely anisotropic materials in the descartes coordinate axes was given by virtue of the theories of so ( 3 ) group rotation

    隨后又以在連續調制光輻照下的各向異性介質的熱傳導理論為基礎，通過so （ 3 ）群轉動理論，導出確定任意不透明各向異性介質在笛卡兒坐標下的熱導張量和熱導主軸方向的測量方法。
  6. The main limitation of a intensity - modulated - continuous - wave laser rangefinder is the leakage distortion created by the high frequency current source which modulates the laser diode

    在調強連續波激光測距系統中，調制激光器的高頻電流源產生的泄漏干擾是影響測距精度的主要因素。
  7. Sensitive wavelength - modulated photoacoustic spectroscopy with dfb diode laser

    靈敏的基於分佈反饋式半導體激光波長調制光聲光譜
  8. Laser diode is the most important laser in practice, it can be modulated by the current directly

    摘要半導體激光器是實用中最重要的一類激光器，它具有可直接調制的特點。
  9. In high - speed direct optical modulation of laser diodes, the frequency chirp of the modulated signal cannot be eliminated. then the optical external modulators play more and more important role in large capacity optical transmission systems, and have become a subject of intense study

    在高速光調制中，直接調制引起的啁啾噪聲難以克服，光外調制器在大容量光纖傳輸系統中，扮演著越來越重要的角色，成為當前的研究熱點。
  10. At present, signal pulses produced by directly modulated laser diodes have been used in optical fiber communication systems. the experiment reveals that the optical pulses from directly modulated laser diodes are far from gaussian and have near - rectangular temporal profiles with much sharper leading and trailing edges, and then a super - gaussian model, which assumes that an incident optical pulse has a super - gaussian profile, may be more suitable

    但在實際的光通信系統中，人們常採用由直接調制半導體激光器產生的光脈沖作為信號脈沖，而實驗結果表明這種脈沖具有比高斯脈沖更為陡峭的前沿和后沿，其脈沖形狀更接近於超高斯分佈，並且通常還帶有一定量的啁啾。
  11. Theoretical model of self - mixing interference in a linear frequency modulated laserdiode is presented by using the dynamic theory of semiconductor laser with weak external optical feedback. the characteristics of oscillation frequency shift and output power changes of the laser diode are analyzed by using the theoretical model. the absolute distance from front facet of laser diode to target can be found by measuring spectrum of output power of the laser diode

    使用半導體激光器在弱反饋條件下的動力學理論，建立了線性調頻半導體激光器的自混頻干涉理論模型.基於該模型，分析了激光器振蕩頻率偏移與輸出功率變化特性.通過測量激光器輸出功率譜，可以得到激光器前端面與被測目標之間的距離
  12. In the system, a tunable dioxide laser is used as a sensor source, and the method of wavelength modulated is adopted, then concentration of gas is determined through detecting the generated second harmonic by opto - electronics converter

    用可調諧二極體激光作為傳感光源，採用波長調制方法，通過對諧波信號進行光電探測可得氣體濃度。
  13. The clock control da chip of mb40978 converts rgb digital vedio singal into amplitude - modulated rgb pulse that is magnified and inner - modulate laser

    經過處理的rgb視頻數字信號經過時鐘控制的da轉換和一級驅動，產生調幅脈沖信號，實現半導體激光器的內調制。
  14. Comparing with the traditional phase - shifted laser range finder, the method could implement the ranging with multifrequency by using single modulated frequency. it could not only solve the contradiction of the range and the precision, but has high degree of accuracy and wide range, simplify the hardware design, and reduce the cost. this paper introduced the theory of phase distance measurement, analyzed various testing methods and expatiated the hardware and the software for the proposal system

    與傳統的相位法測距相比，本方法使用單調制頻率實現了多頻測距，有效地解決了相位法測距中測程與測量精度之間的矛盾，具有高精度、大量程、大噪聲容限的特點，而且簡化了硬體設計，降低了成本；其次在數據處理中採用數據加窗函數的方法，提高了方波信號的頻譜解析度，進而提高了測量的精度。
  15. The wakefield excited by an ultrashort and ultrahigh laser pulse propagating through tenuous plasma can accelerate electrons to extreme high energy. this can be used as a mechanism to design minitype electron accelerator. this thesis is devoted to studying those issues relevant to the wakefield accelerator, namely the laser wakefield accelerator ( lwfa ), laser wakefield accelerator driven by multiple pulses ( mp - lwfa ), plasma beat wave accel - erator ( pbwa ) and self - modulated laser wakefield accelerator ( sm - lwfa )

    本文的目的是：利用粒子模擬方法，研究和比較激光尾流場加速電子的四種主要方案：短脈沖激光尾流場加速（ lwfa ） 、多脈沖激光尾流場加速（ mp - lwfa ） 、拍頻束尾流場加速（ pbwa ） 、自調制激光尾流場加速（ sm - lwfa ） 。
  16. Direct measurement of ch4 absorption spectrometer by means of tunable frequency modulated diode laser

    激光頻率調制光譜法測量甲烷的吸收光譜
  17. It has been presented in this dissertation that using model of q modulated er - glass laser, through replacing typical number of er - doped fiber and single mode fiber into the model, then the theoretical model of self - q - switching by sbs was established. by emulating experiment, the peak value of output power, repeating frequency, width of pulse have been calculated. the data was calculated repeatedly when the length of er - doped fiber changing

    將摻鉺光纖和單模光纖的典型值數據代入該模型中，進行模擬實驗研究得出sbs自調q光纖激光器輸出峰值功率、脈寬、重頻等數據，並在改變摻鉺光纖長度的情況下，再次進行模擬實驗，對上述輸出結果進行了分析。
  18. The laser source was modulated by the modulation circuit, so that the fluorescence signal was modulated

    信號調制電路通過對傳感器系統的激光光源進行調制來調制熒光信號。
  19. The present invention provides a wideband wavelength converter with four - wave - mixing, which includes a modulated laser diode, a modulator, a first and second polarized controller, a first, second and third tunable lasers, a optical coupler, a soa wavelength converter and a multiplexer

    本發明系提出一種寬頻四波混合波長轉換裝置，其包含調變雷射光源、光調變器、第一及第二極化控制器、第一、第二及第三可調式雷射、光耦合器、半導體光放大器、及一多工器。
  20. Study of modulated laser interferometry for piezoelectric characteristic measurement of piezoelectric ceramic

    壓電陶瓷壓電特性的激光調製法測量研究
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