Abstract
It is shown that two pump beams incident upon a bismuth silicon oxide crystal give rise to a subharmonic beam bisecting the pump beam. Simultaneously a signal beam injected between the pump beams may be strongly amplified at the expense of the pump beams. It is shown that the amplified signal beam grows with a faster time constant than the subharmonic beam and that there is competition for gain in the steady state regime.
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Jones, D.C., Lyuksyutov, S.F. & Solymar, L. Competition between subharmonic and signal beams for photorefractive gain in BSO with two pump beams. Appl. Phys. B 52, 173–175 (1991). https://doi.org/10.1007/BF00750947
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DOI: https://doi.org/10.1007/BF00750947