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Very high gain single pass two-beam coupling in 'blue' Rh:BaTiO3
Two-beam coupling has been studied at red and near-infrared wavelengths in "blue" Rh:BaTiO3. High amplification, of the order of 20,000 - 37,000, of a weak signal beam, has been measured. Rh:BaTiO3 exhibits strong intensity-dependent absorption and transmission behaviour and this effect is considered when fitting theoretical plots to the experimental data.
Optics Letters (1995) Vol.20(18) pp.1850-1852
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