Abstract

We demonstrate a technique by which the temporal oscillations in the response of a photorefractive square-law converter, a recently developed high-contrast spatial light modulator, may be removed. This technique uses the translation of an amplitude grating incoherently imaged upon a photorefractive crystal to obtain a moving intensity pattern within the material. We thus obtain running-wave effects similar to those seen by previous investigators writing photorefractive gratings by using the interference of two coherent frequency-shifted beams. We show both theoretically and experimentally that the criteria for removing temporal oscillations simultaneously yields a significant improvement in the diffraction efficiency of the square-law converter.

© 1992 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Photorefractive square-law converter

Frederick Vachss, John Hong, and Scott Campbell
Opt. Lett. 16(15) 1204-1206 (1991)

Kinetics of two wave mixing gain for moving grating technique in photorefractive BaTiO3 crystal

Sang Jo Lee, Hye Ri Yang, Eun Ju Kim, Yeung Lak Lee, and Chong Hoon Kwak
Opt. Express 16(24) 19615-19628 (2008)

Frequency-dependent photorefractive response in the presence of applied ac electric fields

Frederick Vachss
J. Opt. Soc. Am. B 11(6) 1045-1058 (1994)

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 (4)

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 (7)

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