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Proceedings Paper

Characteristics of materials for optical limiters and switches
Author(s): Richard C. Powell; Bahman Taheri; Antonio Munoz Flores; Roger J. Reeves
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Paper Abstract

This paper summarizes recent results obtained on CdTe polarization rotation switches and optical limiter based on lead glasses. The polarization rotation switch is based on picosecond pulse four wave mixing with two beams and the switching characteristics are dependent on beam crossing angle, relative polarization directions, and pulse timing. Material enhancement of the nonlinear scattering is demonstrated by using Mn-doped crystals. Optical limiting by thermal lensing on the nanosecond time scale was characterized in a variety of lead based glasses and it was found that the main contribution to the thermo-optic coefficient is due to thermally induced changes in the electronic polarizability of the glass components (especially oxygen) and is effected by the polarizing power of the network former ions. Random network structures have greater thermo—optic coefficients than ring and chain structures and modifier ions affect the properties through changes in the absorption coefficient of the material.

Paper Details

Date Published: 18 August 1992
PDF: 12 pages
Proc. SPIE 1692, Nonlinear and Electro-Optic Materials for Optical Switching, (18 August 1992); doi: 10.1117/12.138065
Show Author Affiliations
Richard C. Powell, Oklahoma State Univ. (United States)
Bahman Taheri, Oklahoma State Univ. (United States)
Antonio Munoz Flores, Oklahoma State Univ. (United States)
Roger J. Reeves, Oklahoma State Univ. (United States)


Published in SPIE Proceedings Vol. 1692:
Nonlinear and Electro-Optic Materials for Optical Switching
M. J. Soileau, Editor(s)

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