It is well known that nonlinear self - focusing effect is one of the important factors to limit icf laser energy and worsen beam quality 实践表明，非线性自聚焦效应是限制icf驱动器激光输出能量及破坏光束质量的主要因素之一。
The cooler and temperature controller of nd : yap rod are improved and the lower dopant concentration of the nd : yap ( 0 . 6 at . % ) 除了改进冷却控温系统外，选择掺杂浓度较低的激光晶体，有利于高效散热，得到更稳定的激光输出。
Under the proper condition , the slave laser can be locked its frequency to the master laser ' s frequency . we obtained about 60mw laser output 在锁定状态下，获得了功率约60mw的激光输出，在rb原子吸收d _ 2线附近调谐范围达4 . 5ghz 。
With a wide - spectrum tunable output , optical parametric oscillator ( opo ) extends the laser wavelength and meets diversified needs 光学参量振荡器( opo )可以产生宽范围可调谐激光输出,它的出现拓宽了激光波长,使之可以满足各种应用需要。
To achieve diffraction - limited beam quality laser , single mode fiber is used as waveguide in both fiber amplifier and fiber laser in the past 为了实现高光束质量激光输出,传统的光纤放大器和光纤激光器均采用芯径较小的单模光纤作为增益介质波导。
The experiment result accord with the theory ' s . when the transmission rate of output mirror equal to 4 . 9 percent . the output power is 1w . the slope efficiency is 54 . 1 % 我们用透射率t = 4 . 9的镜片作为输出镜，当泵浦功率等于2 . 2w时，最大单频红外激光输出为1w ，斜效率为54 . 1 。
Laser dye doped in the sample is pyrromethene 567 . longitudinally pumped tunable solid - state dye lasers using intra - cavity grating were established with q - switched frequency - doubled nd : yag laser pumping source 在激光宽带辐射实验中，获得了7nm ( fwhm )的激光输出，斜效率达69 。
This system uses a ring structure instead of complex multiangular optics structure . stimulate raman scatter is used to combine laser beam and it also improve the quality of laser beam 采用这个激光能量储存环技术能提高准分子激光放大超短脉冲激光的效率，获得高功率，高束质的激光输出。
The method for third harmonic generation of large - aperture high - power solid laser is described which is the second nonlinear effect of two cascade crystals in this paper 摘要叙述了大口径高功率固体激光器，利用两块级联晶体的二阶非线性效应，对激光输出进行谐波转换，实现三次谐波输出的方法。
In order to realize a experiment of laser cooling and trapping atoms , we have set up a laser diode injection locking system and achieved a laser with single mode , narrow linewidth and 60mw power output 为了进行原子冷却与俘获的实验研究，我们用注入锁定的方法获得了约60mw的单模窄线宽激光输出。
