Choice of clip levels for beam width measurements using knife-edge techniques
Citations Over TimeTop 10% of 1991 papers
Abstract
The scanning knife-edge technique provides a method for measuring the width of an optical beam having an arbitrary or irregular transverse profile. To implement this method, however, it is necessary to select both a clip level and a scale factor for converting the measured clip width into an effective width of the laser beam. The authors show that the preferred clip level for beam width measurements using this technique should be chosen in the range between 8.5% and about 11.6%. With a suitably matched clip level and scale factor within this range, the conversion from measured clip width to standard deviation can be made exactly accurate for TEM/sub 00/ Gaussian beams, and the conversion factor will become only slightly inaccurate for a wide range of other higher-order or poorer-quality beam profiles.>
Related Papers
- → Influence of laser array performance on spectrally combined beam(2016)20 cited
- → The effect of beam quality factor for the laser beam propagation through turbulence(2017)18 cited
- → Induced focusing and conversion of a Gaussian beam into an elliptic Gaussian beam(2005)1 cited
- Effect of frequency doubling on beam quality and space distribution(2009)
- Measurment Method of High-power Laser Beam Parameters(2000)