beam waist

For improving the heterodyne efficiency in CO2 laser imaging radar system, a focus-off telescope is applied as beam broadening system to adjust the position of the local beam waist in local beam branch of the CO2 laser imaging radar optical system.

为提高CO2脉冲外差激光成像光学系统的外差探测效率，在出射光为基模高斯光束的本振光路的设计中。

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The variation of beam waist position, beam width and light power with injection current in GaAs-Al_XGa_ ( 1-X) As DH stripe-geometry lasers, and the relationship between the station-ary stability and transient self-sustained pulsation have been studied experimentally.

从实验上研究了GaAs-Al xGa（1-x）As DH条形激光器的稳态束腰、束宽和激光功率随电流变化的规律与瞬态自脉动的关系。

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When the distance between Gauss beam waist of object and lens is farther than the lens focus, and the lens focus is minimum;

即当物方高斯光束束腰离透镜的距离l远大于透镜焦距f，f为极小值；

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And the beam waist can zoom in a small, suitable for different size people.

并且腰部可以放大束小，适用于不同体型的人士。

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In addition, analytic expression of the waist spot size and working distance of output Gaussian beam were derived, and the influence of coreless fiber and GRIN fiber ′ s length upon fiber-lens parameter was discussed by numerical simulation results.

推导了出射高斯光束的束腰半径和工作距离的解析表达式，进而对该光纤透镜做了数值模拟，讨论了无芯光纤和GRIN多模光纤的长度对光纤透镜参数的影响。

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In this article the waist radius ( W_ ( 02)) and its location ( Z_2) of expanded beam by telescope has been proved.

本文推导出经扩束望远镜扩束后的束腰半径（W（02））和所在位置（Z2）。

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The effect of Gauss beam waist and imaging lens F, signal light axis offset, length to wide ratio of rectangular detector and signal light axis tilt to heterodyne efficiency have been analyzed and discussed.

分别讨论了高斯光束束腰和成像物镜F数、信号光光轴偏移量、矩形探测器长宽比及信号光光轴倾斜角度对外差效率的影响。

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Using the entropy-based width, asymptotic analysis and encircled power in the bucket, the waist width w, far-field divergence angle θ 0 and M2 factors of a truncated flatted Gaussian beam ( FGB) were studied and compared.

使用熵束宽、渐近分析和环围功率法对截断平顶高斯光束的束腰宽度w、远场发散角θ0和M2因子作了比较研究。

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The influence of chirp coefficient and beam waist width over electron acceleration was also analyzed in this paper.

我们还对啁啾系数、光束腰宽对加速的影响进行了分析。

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By the method of matrix optics, the waist width and imaging distance of Gauss beam through the self-focusing micro lens system and the double plan convex lens coupling system are deduced.

利用矩阵光学方法，分别推导了高斯光束经双平凸镜耦合简和自聚焦微透镜两种耦合系统聚焦后的束腰宽度和像距的计算公式。

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We find from the simulation that when the GH shift is enhanced to the scale of beam waist width, obvious beam distortion appears, the reflected spot changes into a double-peak shape.

我们发现，当古斯汉欣位移被增强到束腰宽度的尺度，即出现了明显的形变，其表现为反射光斑内的能量分布出现双峰结构。

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The beam waist width, the waist location in free-space propagation and the M2-factor of EshG beams are also deduced.

得到了复宗量双曲正弦高斯光束在自由空间传输时束腰宽度和位置的解析表达式以及M2因子的表达式。

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Measurement of Light Spot Size of Laser and of Beam Waist

激光光斑及束腰光斑尺寸的测量研究

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Effect of Spherical Aberration on the Image Beam Waist in the Design of Laser Optical System

激光光学系统设计中球差对像方束腰的影响

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