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Proceedings Paper

Controllable multiple-ring fringes in central brightness
Author(s): Zhi-Zhong Zha; Yundong Zhang; Geng-Fu Zhou; Qi L. Wang; Zuguang Ma
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Paper Abstract

With several different glasses for nonlinear optical materials we first observed the far field multiple-ring fringes in them using a cw Ar+ laser as a light source at 514.5 nm and 488.0 nm, respectively. The central brightness of multiple-ring fringes could be controlled through changing incident power or the sample position near the focus. This phenomenon is considered as a result of spatial self-phase modulation caused from self-focusing. The thresholds of fringes and the thresholds of laser damage in three kinds of glasses are different from one another. Moreover, the far-field fringes of reflecting light were watched carefully. The light power limiter of optical density D equals log 1/T(lambda ) equals (infinity) can be constructed with the phenomenon.

Paper Details

Date Published: 21 October 1994
PDF: 5 pages
Proc. SPIE 2287, Properties and Characteristics of Optical Glass III, (21 October 1994); doi: 10.1117/12.190948
Show Author Affiliations
Zhi-Zhong Zha, Harbin Institute of Technology (China)
Yundong Zhang, Harbin Institute of Technology (China)
Geng-Fu Zhou, Harbin Institute of Technology (China)
Qi L. Wang, Harbin Institute of Technology (China)
Zuguang Ma, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 2287:
Properties and Characteristics of Optical Glass III
Alexander J. Marker, Editor(s)

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