title: Conjugation fidelity of double phase-conjugate mirrors in photorefractive materials with two-center transport.
abstract: The temporal evolution of double phase-conjugate mirrors (DPCM's) in photorefractive materials such as BaTiO(3):Co:Fe is studied by use of the plane-wave expansion method. The buildup time of DPCM and its conjugation fidelity are compared with those of photorefractive materials with a single-center transport. Numerical simulations show that one can decrease the threshold value of the coupling strength required for the DPCM operation with a high conjugation fidelity by doping the BaTiO(3) crystals weakly with Co in comparison with undoped crystals.
authors.forename: I
authors.initials: I
authors.lastname: Geri
authors.forename: C
authors.initials: C
authors.lastname: Ozkul