Share Email Print
cover

Proceedings Paper

Photorefraction demonstrations using electrooptic PLZT ceramics modulators
Author(s): Maris Ozolinsh; Dag Hanstorp
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

PLZT ceramics electrooptic (EO) modulator was designed for demonstrations and student's laboratory works to study photorefraction using Ar+ laser (λ = 514 nm). PLZT element had an aperture of 1.5 x 8 mm2 and thickness of 1.5 mm. Reading of recorded patterns was realized by applying to the element the biasing electric field. The most efficient writing took place for ceramics composition PLZT 8.75/65/35. The total intensity of two writing beams was up to 300 mW, the applied electric field during writing -- up to 20 kV/cm. The diffraction efficiency depended on the applied biasing reading electric field EBR. For the reading He-Ne laser the diffraction efficiency η ≈ 0.48 was obtained at the bias field values EBR = 13 kV/cm. The simplicity of the modulator alignment and writing and reading processes promote the use of such modulators in the teaching process.

Paper Details

Date Published: 19 November 2003
PDF: 2 pages
Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.524469
Show Author Affiliations
Maris Ozolinsh, Univ. of Latvia (Latvia)
Dag Hanstorp, Chalmers Univ. of Technology (Sweden)


Published in SPIE Proceedings Vol. 4829:
19th Congress of the International Commission for Optics: Optics for the Quality of Life

© SPIE. Terms of Use
Back to Top