Before dismissing something, might want to check the physics:
[Concetto R. Giuliano, 1981]
Concetto R. Giuliano, "Applications of optical phase conjugation," Physics Today, vol. 34, no. 4, pp. 27-35, Apr. 1981.
Abstract: Light waves that are, in effect, time-reversed images of their original can serve to restore severely aberrated waves to their original state.
[Concetto R. Giuliano, 1981]
Concetto R. Giuliano, "Applications of optical phase conjugation," Physics Today, vol. 34, no. 4, pp. 27-35, Apr. 1981.
Abstract: Light waves that are, in effect, time-reversed images of their original can serve to restore severely aberrated waves to their original state.