Beamwidths of a diffracted laser using four proposed methods
- D. Wright
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The International Organization for Standardization has been preparing test methods for laser beamwidth and propagation factors. Several techniques have been proposed. The purpose of this paper is to compare the results of applying the various proposed definitions and measurement methods to the same diffracted beam. A heavily apertured laser beam is passed through a focusing lens; the beamwidth is measured at several locations on each side of the focus. The apparent beamwidth is calculated using the diameter that passes 86.5% of the light, the knife edge, the slit and the second moment methods of beamwidth measurement.
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- Beamwidths of a diffracted laser using four proposed methods
Optical and Quantum Electronics
Volume 24, Issue 9 , pp S1129-S1135
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- D. Wright (1)
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- 1. Spectra Physics Lasers, 1330 Terra Bella Avenue, PO Box 7013, 94039-7013, Mountain View, CA, USA