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Proceedings Paper

A new-type laser spot size detector
Author(s): Tingwan Wu; Chao Li
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Paper Abstract

This paper reports the experimental research result for the measurement of laser pot size and the beam waist with a new method, basic on that a new type detector fabricated with monocrystalline silicon. The design idea for the detector was demonstrated right and doable theoretically and experimentally, with new approach, the so-called "pre-saturation" of silicon. This new detector can detect the size of laser beam pot quickly and accurately, with wide response wavelength band and quite small expense. Also in this work, an interesting novel phenomenon, some abnormal variations of photo- voltage, is observed. For that the model of "competition between photons" set up to give a good qualitative interpretation, which leaded to the final success of experiment design.

Paper Details

Date Published: 22 October 2004
PDF: 6 pages
Proc. SPIE 5524, Novel Optical Systems Design and Optimization VII, (22 October 2004); doi: 10.1117/12.562560
Show Author Affiliations
Tingwan Wu, South China Univ. of Technology (China)
Chao Li, South China Univ. of Technology (China)

Published in SPIE Proceedings Vol. 5524:
Novel Optical Systems Design and Optimization VII
Jose M. Sasian; R. John Koshel; Paul K. Manhart; Richard C. Juergens, Editor(s)

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