Enhanced performance of a mutually pumped phase-conjugation setup using two photorefractive crystals
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- Wang, F., Hermerschmidt, A., Pogany, P. et al. Appl Phys B (2001) 72: 755. doi:10.1007/s003400100551
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A mutually pumped phase-conjugator (MPPC) consisting of two photorefractive crystals is investigated experimentally at a wavelength of about 807 nm. In addition to a Rh:BaTiO3 crystal, which is used in a modified bridge configuration for phase-conjugation, a Co:BaTiO3 crystal is used to amplify the phase-conjugate beam by wave-mixing. The phase-conjugate power is at least doubled compared to that using only one crystal, and the beam quality of the phase-conjugate beam is distinctly improved. Moreover, the temporal stability of the phase-conjugate output using two crystals is much higher than that using only one crystal.