標題: OPTICAL RESTORATION OF PHOTOREFRACTIVE HOLOGRAMS
作者: YEH, P
GU, C
CHENG, CJ
HSU, KY
光電工程學系
Department of Photonics
公開日期: 1-Nov-1995
摘要: 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 self-enhanced readout scheme. The results also provide an explanation for the formation of mutually pumped phase conjugation in terms of the amplification of an initial noise grating. The results are presented and discussed.
URI: http://dx.doi.org/10.1007/BF01081282
http://hdl.handle.net/11536/1664
ISSN: 0946-2171
DOI: 10.1007/BF01081282
期刊: APPLIED PHYSICS B-LASERS AND OPTICS
Volume: 61
Issue: 5
起始頁: 511
結束頁: 514
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