Characterization of Hermite--Gaussian Beams by Using Hartmann--Shack Wavefront Sensor
GAO Chun-Qing1,2, GAO Ming-Wei1,2, Weber Horst2
1Department of Opto-Electronics, Beijing Institute of Technology, Beijing 100081
2Optical Institute, Technical University Berlin, D-10623 Berlin, Germany
Characterization of Hermite--Gaussian Beams by Using Hartmann--Shack Wavefront Sensor
GAO Chun-Qing1,2;GAO Ming-Wei1,2;Weber Horst2
1Department of Opto-Electronics, Beijing Institute of Technology, Beijing 100081
2Optical Institute, Technical University Berlin, D-10623 Berlin, Germany
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.
2004, Vol. 21 
