| Characterization of Hermite-Gaussian Beams by Using Hartmann-Shack Wavefront Sensor |
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| 作者姓名： | 高春清 高明伟 WeberHorst |
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| 作者单位： | [1]DepartmentofOpto-Electronics,BeijingInstituteofTechnology,Beijing100081 [2]OpticalInstitute,TechnicalUniversityBerlin,D-10623Berlin,Germany |
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| 摘 要： | A Hartmann-Shack wavefront sensor (HSWS) is used in characterization of Hermite-Gaussian beams that are generated from a laser-diode pumped mode generator. By measuring the intensity distribution and the phase gradient distribution of the Hermite-Gaussian beams, we determine the beam width, radius of curvature and M^2factor from the images recorded in the HSWS. The results obtained from the HSWS measurement are compared with the ones obtained from the caustic measurement.
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| 关 键 词： | 激光 电波参数 波阵面 测量方法 |
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