Characterization of Hermite--Gaussian Beams by Using Hartmann--Shack Wavefront Sensor

Chin. Phys. Lett.

2004, Vol. 21

Issue (11): 2191-2194 DOI:

Original Articles

Characterization of Hermite--Gaussian Beams by Using Hartmann--Shack Wavefront Sensor

GAO Chun-Qing^1,2;GAO Ming-Wei^1,2;Weber Horst²

¹Department of Opto-Electronics, Beijing Institute of Technology, Beijing 100081 ²Optical Institute, Technical University Berlin, D-10623 Berlin, Germany

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GAO Chun-Qing, GAO Ming-Wei, Weber Horst 2004 Chin. Phys. Lett. 21 2191-2194

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Abstract 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 M²-factor from the images recorded in the HSWS. The results obtained from the HSWS measurement are compared with the ones obtained from the caustic measurement.

Keywords: 42.60.Jf 42.51.Dp 42.25.Xi

Published: 01 November 2004

PACS:	42.60.Jf	(Beam characteristics: profile, intensity, and power; spatial pattern formation)
	42.51.Dp
	42.25.Xi

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I11/02191

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