Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Studies of the dynamic range of photorefractive gratings in ferroelectric crystals

Not Accessible

Your library or personal account may give you access

Abstract

The dynamic range, defined as the range of intensity ratios for which two writing beams can induce a detectable photorefractive grating, is measured for ferroelectric crystals BaTiO3, KNbO3, SrxBa1−xNbO6, BaxSr2−xK1−yNayNb5O15. Our results show a large dynamic range in all these crystals, 70–100 dB, which should prove these crystals useful for signal processing and computing applications. The observed limit on the dynamic range was due predominantly to the detector noise and therefore was not the fundamental limit imposed by the underlying physics of photorefractive noise. The calculations of noise based on limited photon density flux (shot noise) and thermally induced grating fluctuations (thermal noise) show the dynamic range to be 4–5 orders of magnitude higher than that observed experimentally.

© 1992 Optical Society of America

Full Article  |  PDF Article
More Like This
Electro-optic and photorefractive properties of Bi4Ge3O12 crystals in the ultraviolet spectral range

G. Montemezzani, St. Pfändler, and P. Günter
J. Opt. Soc. Am. B 9(7) 1110-1117 (1992)

Photorefractive effects induced by picosecond light pulses in reduced KNbO3

I. Biaggio, M. Zgonik, and P. Günter
J. Opt. Soc. Am. B 9(8) 1480-1487 (1992)

High-order anisotropic diffraction in photorefractive crystals

D. A. Temple and C. Warde
J. Opt. Soc. Am. B 5(8) 1800-1805 (1988)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (3)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (21)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved