The following papers are viewable in PDF format:
(Some files may be viewed more easily if downloaded)
"Phase Locking via Brillouin-Enhanced Four-Wave-Mixing Phase Conjugation,"
Mark W. Bowers and Robert W. Boyd
IEEE Journal of Quantum Electronics, 34, 634 (1998).
"Brillouin-enhancedfour-wave-mixing vector phase-conjugate mirror with beam-combining capability"
Mark W. Bowers, Robert W. Boyd, Allen K. Hankla
Optics Letters, Vol. 22 Issue 6 Page 360 (1997)