Hologram enhancement in photorefractive media

Pochi Yeh; Claire Gu; Chau-Jern Cheng; Ken Yuh Hsu

doi:10.1117/12.209465

1 August 1995 Hologram enhancement in photorefractive media

Pochi Yeh, Claire Gu, Chau-Jern Cheng, Ken Yuh Hsu

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Optical Engineering, Vol. 34, Issue 8, (August 1995). https://doi.org/10.1117/12.209465

Abstract

We consider the possibility of restoration and/or enhancement of decaying holograms in photorefractive media by using a simple optical readout in conjunction with a phase conjugator. The results indicate that extremely weak holograms can be enhanced provided that the two-beam coupling is sufficiently strong. Steady-state photorefractive holograms can be maintained continuously without decay by using a properly designed readout scheme. The result also provides an explanation for the formation of mutually pumped phase conjugation in terms of the amplification of initial noise gratings.

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Pochi Yeh, Claire Gu, Chau-Jern Cheng, and Ken Yuh Hsu "Hologram enhancement in photorefractive media," Optical Engineering 34(8), (1 August 1995). https://doi.org/10.1117/12.209465

Published: 1 August 1995

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