One-way phase conjugation with partially coherent light and superresolution

Limitations on the one-way phase-conjugation technique are described. These limitations are reduced or eliminated by reducing the spatial coherence of the light and by reducing the aperture of the imaging system. By introducing a suitable level of superresolution of the kind previously described as superresolution by incoherent-tocoherent conversion, the aperture and coherence reductions reduce the effect of the optical path inhomogeneities. However, the aperture reduction does not degrade the diffraction-limited resolution limit.