Abstract

The photorefractive response with moving gratings is investigated both numerically and experimentally under varied fringe-velocity and modulation-depth (m = 0.002 to m = 1) conditions. The numerical analysis employs a finite-difference technique to model photorefractive grating dynamics. The magnitude and the phase of the space-charge field are presented in detail as functions of modulation depth, fringe velocity, and crystal parameters. Energy transfer and diffraction efficiency are found to exhibit different response characteristics with modulation and fringe velocity. Numerical results for two-wave mixing are generalized through analytical expressions that approximate the numerical solutions. Illustrative experimental results are presented for Bi12SiO20.

© 1994 Optical Society of America

Full Article  |  PDF Article
Related Articles
Influence of nonlinearities on two-wave mixing in photorefractive InP:Fe crystals with a moving grating

V. Dupray, M. Brunel, C. Özkul, and N. Wolffer
J. Opt. Soc. Am. B 17(3) 407-411 (2000)

Two-wave mixing with an applied field and a moving grating

George C. Valley
J. Opt. Soc. Am. B 1(6) 868-873 (1984)

Higher harmonic gratings in photorefractive materials at large modulation with moving fringes

L. B. Au and L. Solymar
J. Opt. Soc. Am. A 7(8) 1554-1561 (1990)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (16)

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

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

Equations (19)

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

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

Metrics

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

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