Semiconductor laser collimation and shaping design based on the combination of a rotationally symmetrical lens and a cylindrical lens.

IF 1.5 3区物理与天体物理 Q3 OPTICS Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2024-11-01 DOI:10.1364/JOSAA.532459

Liang Zhong, Yunlong Li, Shuaikang Fu, Yan Qin, Jianing Liu, Ping Jiang, Huajun Yang

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Abstract

A dual-lens collimation and shaping system which is composed of a rotationally symmetric lens and an aspherical cylindrical lens is proposed in this paper. The system design method is discussed in detail, and the divergent elliptical laser beams are finally converted into collimated circular beams. The simulation results show that the maximum divergence angle of the beams can be collimated to 2.58 µrad, the standard deviation of the edge beam radius samples (SDRS) can be decreased from the original 4.227 to 0.135 mm, and the ratio of beam waist (RBW) drops from 1.554 to 1.0093 in the case of the output beam radius of 40 mm. The effects of transmission distance, astigmatism, wavelength deviation, light source offset, and lens offset on the collimation shaping effect are discussed. The collimation system can be widely used in long-distance optical communication systems and the design method in this paper can provide some new ideas for optical design researchers.

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基于旋转对称透镜与圆柱透镜组合的半导体激光器准直与整形设计。

本文提出了一种由旋转对称透镜和非球面圆柱透镜组成的双透镜准直整形系统。详细讨论了系统的设计方法，并将发散的椭圆激光束最终转换为准直的圆光束。仿真结果表明，在输出光束半径为40 mm的情况下，光束的最大发散角可准直至2.58µrad，边缘光束半径样本（SDRS）的标准差可由原来的4.227减小到0.135 mm，光束腰比（RBW）由1.554减小到1.0093。讨论了传输距离、像散、波长偏差、光源偏移和透镜偏移对准直整形效果的影响。准直系统在远距离光通信系统中具有广泛的应用前景，本文的设计方法可以为光学设计研究者提供一些新的思路。

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来源期刊

Journal of The Optical Society of America A-optics Image Science and Vision 物理-光学

CiteScore

3.40

自引率

10.50%

发文量

417

审稿时长

3 months

期刊介绍： The Journal of the Optical Society of America A (JOSA A) is devoted to developments in any field of classical optics, image science, and vision. JOSA A includes original peer-reviewed papers on such topics as: * Atmospheric optics * Clinical vision * Coherence and Statistical Optics * Color * Diffraction and gratings * Image processing * Machine vision * Physiological optics * Polarization * Scattering * Signal processing * Thin films * Visual optics Also: j opt soc am a.