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by photorefractive forward four-wave mixing. The intensity of a signal beam is amplified by a factor up to 3000. We show that heating of the crystal by absorption of the pump light influences the gain because of the thermo-optic effect. Thus both, amplification and generation can be controlled by the intensities of the pump beams.
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Received: 23 January 1998
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Neumann, J., Röwe, M. & Krätzig, E. Photorefractive amplification and generation of light beams in BaTiO3 controlled by the intensity of the pump light . Appl Phys B 67, 73–77 (1998). https://doi.org/10.1007/s003400050477
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DOI: https://doi.org/10.1007/s003400050477