Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.optlastec.2006.06.001
Title: Small Gaussian laser beam diameter measurement using a quadrant photodiode
Authors: Ng, T.W. 
Tan, H.Y.
Foo, S.L.
Keywords: Gaussian beam measurement
Quadrant photodiode
Issue Date: Jul-2007
Source: Ng, T.W., Tan, H.Y., Foo, S.L. (2007-07). Small Gaussian laser beam diameter measurement using a quadrant photodiode. Optics and Laser Technology 39 (5) : 1098-1100. ScholarBank@NUS Repository. https://doi.org/10.1016/j.optlastec.2006.06.001
Abstract: A method that uses the quadrant photodiode has been shown to be relatively inexpensive and robust in measuring Gaussian laser beam diameters in two axes. This approach requires neither component rotation nor precision alignment, and it facilitates integration of Gaussian laser beam diameter measurement with laser beam tracking in instruments. The physical gap between sensors in the quadrant photodiode, however, limits laser beam diameter measurements to those in the millimeter range. Here, we describe a modified approach to measure Gaussian laser beam diameters that are significantly smaller. © 2006 Elsevier Ltd. All rights reserved.
Source Title: Optics and Laser Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/67802
ISSN: 00303992
DOI: 10.1016/j.optlastec.2006.06.001
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