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调制系数
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  modulation index
    We get 2f? 4f and 6f harmonic signals about the ref lection spectroscopy of 6S 1/2 (F=4)→6P 3/2 (F ′=5)transition of t he cesium D 2 line using the voltage modulation in the experiment. By use of the numerical analysis,we also get the relationships of the modulation index and mo dulation broaden with high-harmonic detection.
    在对激光器采用电压调制的情况下进行了 Cs原子 D2 线中 6S1/ 2 ( F=4)→ 6P3 / 2 ( F′=5 )电子跃迁反射光谱的二次、四次和六次谐波探测 ,并通过数值分析得到了低压气体在谐波探测下调制展宽与调制系数的关系 ,实验结果与理论分析吻合较好。
短句来源
    Measurement of Modulation Index with High-order-harmonic Detection
    利用高次谐波测量调制系数
短句来源
    For an active-passive mode-locked laser with a pulse duration of 7 ps, the probability for occurring satellite pulses was related to the. modulation index of the modulator.
    对于输出脉宽为7微微秒左右的主被动锁模,出现卫星脉冲的几率与调制器的调制系数有关.
短句来源
    The modulation indexes have been measured by the harmonics intensity ratios (4f max /6f max ). By use of the numerical analysis,we get the relationship of the modulation index and high harmonics (4f,6f) detection. We also get 4f and 6f harmonic signals about the 6S 1/2 (F=4)→6P 3/2 transition of the cesium D 2 line using the voltage modulation.
    本文提出了利用高次谐波峰值的比值 (4fmax/ 6 fmax)测量调制系数的方法 ,并采用外腔式二极管激光器电压调制光谱进行了 Cs原子 D2 线的高次谐波探测。
短句来源
  “调制系数”译为未确定词的双语例句
    The theoretical calculation shows that the bistable be-havior of lasers operated by the scheme is connected with the pump intensity oflasers, the feedback coefficient of the laser output, the feedback loss-modulationcoefficient, the intensity of input optical signal and the saturation intensity ofthe photodetector.
    理论计算表明,按这种方式运转的激光器的双稳特性与激光器的泵浦强度、光输出反馈系数、反馈损耗调制系数、输入光信号强度以及光电探测器的饱和光强有关。
短句来源
    There is good agreement between the experimental patterns of bista bility and the sen1iclassical theory calculations when the device parameters(such as the feedback coefficient η of laser output to photodetector,feedback loss-modulation coefficient B,the saturation light intensity Id of photodetector,input op-tical signal intensity Ii,as well as pumping current i_A of laser)are changed.
    器件的双稳特性随各参量(激光输出到光探测器的反馈系数η、反馈损耗调制系数B、光探测器的饱和光强I_d、输入光信号强度I_i以及激光器的泵浦电流i_a)变化的规律,与半经典理论计算的结果完全一致。
短句来源
    The influences of t he parameters of the SSD technique on the beam smoothing performance are numeric ally analyzed.
    数值模拟了SSD各参量,包括脉冲时间、调制频率、位相调制系数、光栅线色散系数等对束匀滑性能的影响.
短句来源
    By adjusting the modulation frequency and the index of the modulation properly, we can draw a conclusion that the number of particles trapped changes regularly with time. In certain conditions the susceptibility of the system in the steady state is given.
    适当地调节调制频率以及调制系数,可得到粒子数捕获随时间周期性变化的结论,并得到系统稳态的极化率解析式。
短句来源
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  modulation index
The modulation index of the temperature of the spacecraft dipole antenna rotating in the plane of the ecliptic was found to have an indistinct frequency dependence with a maximum of 17% near 500 kHz.
      
The statistical relation between the microstructure modulation index m and the corresponding timescale τμ can be approximated by the power law dependence R∝τ⊙0.5; i.e., the intensity is higher for micropulses with longer durations.
      
The interval of tuning of the instantaneous light wave frequency achieved in the experiment is 20 GHz, which corresponds to a modulation index of ≌106.
      
The stretch reflex modulation was quantified by a modulation index of on average 50% (range -5 to 100%) in the patients and 93% (78-100%) in the control subjects (P >amp;lt; 0.05).
      
Changing the modulation index M and the phase angle θ keeps the input current in phase with the voltage.
      
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The characteristics of active and active-passive mode-locked phosphate glass oscillators are reported. Active mode- locked pulse duration was about 200 ps with relatively stable output. For an active-passive mode-locked laser with a pulse duration of 7 ps, the probability for occurring satellite pulses was related to the. modulation index of the modulator. Using various intracavity etalons, the pulse duration of 30 ps and 70 ps were generated without satellite pulses. The performances of the active-passive mode-locked...

The characteristics of active and active-passive mode-locked phosphate glass oscillators are reported. Active mode- locked pulse duration was about 200 ps with relatively stable output. For an active-passive mode-locked laser with a pulse duration of 7 ps, the probability for occurring satellite pulses was related to the. modulation index of the modulator. Using various intracavity etalons, the pulse duration of 30 ps and 70 ps were generated without satellite pulses. The performances of the active-passive mode-locked laser are better than that of the passive one.

本文报导了脉冲式主动、主被动锁模磷酸盐玻璃振荡器的特性.主动锁模的脉冲宽度为200微微秒左右,输出性能比较稳定.对于输出脉宽为7微微秒左右的主被动锁模,出现卫星脉冲的几率与调制器的调制系数有关.使用不同的腔内标准具能产生30微微秒和70微微秒的脉冲,没有观察到卫星脉冲.主被动锁模的性能比被动锁模有所提高.

The steady-state solutions of semiclassical laser equations for a laser by out-put-feedback loss-modulation scheme have been obtained, and a linear-stabilityof the solutions analysed. The theoretical calculation shows that the bistable be-havior of lasers operated by the scheme is connected with the pump intensity oflasers, the feedback coefficient of the laser output, the feedback loss-modulationcoefficient, the intensity of input optical signal and the saturation intensity ofthe photodetector. This scheme...

The steady-state solutions of semiclassical laser equations for a laser by out-put-feedback loss-modulation scheme have been obtained, and a linear-stabilityof the solutions analysed. The theoretical calculation shows that the bistable be-havior of lasers operated by the scheme is connected with the pump intensity oflasers, the feedback coefficient of the laser output, the feedback loss-modulationcoefficient, the intensity of input optical signal and the saturation intensity ofthe photodetector. This scheme is a new optically-bistable method and the bista-bility of this active optically bistable device can be adjusted and controlled wi-thin a wide range. The device can exhibit self-pulsating behavior if the feedbackloss-modulation coefficient and the saturation intensity of the photodetector areappropriately selected. Therefore, this device can be used to generate extremelyshort pulses.

利用半经典激光方程求出了光输出反馈损耗调制型双稳激光器的稳态解。进行了解的线性稳定性分析。理论计算表明,按这种方式运转的激光器的双稳特性与激光器的泵浦强度、光输出反馈系数、反馈损耗调制系数、输入光信号强度以及光电探测器的饱和光强有关。该器件是一种可在较大范围内调节和控制的主动式光学双稳器件。适当选择反馈损耗调制系效和光电探测器的饱和光强,该器件还可工作在自脉冲状态,从而有可能利用这种运转方式获得超短激光脉冲。

The experimental operation of a bistable Ar ion laser by output-feedback loss modulation scheme has been reported,Within the resonator of laser,there is an electro-optical crystal LiNbO_3 which is used as an optical loss-modu- lator.The resonator loss is controlled by using the nonlinear saturation characteris- tic of photodetector.There is good agreement between the experimental patterns of bista bility and the sen1iclassical theory calculations when the device parameters(such as the feedback coefficient...

The experimental operation of a bistable Ar ion laser by output-feedback loss modulation scheme has been reported,Within the resonator of laser,there is an electro-optical crystal LiNbO_3 which is used as an optical loss-modu- lator.The resonator loss is controlled by using the nonlinear saturation characteris- tic of photodetector.There is good agreement between the experimental patterns of bista bility and the sen1iclassical theory calculations when the device parameters(such as the feedback coefficient η of laser output to photodetector,feedback loss-modulation coefficient B,the saturation light intensity Id of photodetector,input op-tical signal intensity Ii,as well as pumping current i_A of laser)are changed.

报导了光输出反馈损耗调制型双稳Ar离子激光器的实验结果。激光谐振腔内放置一个用作损耗调制器的电光晶体LiN_bO_3。利用光探测器的非线性饱和特性控制腔内损耗。器件的双稳特性随各参量(激光输出到光探测器的反馈系数η、反馈损耗调制系数B、光探测器的饱和光强I_d、输入光信号强度I_i以及激光器的泵浦电流i_a)变化的规律,与半经典理论计算的结果完全一致。

 
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