Watanabe H, Omatsu T, Hirose T, Hasegawa A, Tateda M
Department of Information and Image Science, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8255, Japan.
Opt Lett. 1999 Nov 15;24(22):1620-2. doi: 10.1364/ol.24.001620.
We demonstrate the use of highly efficient degenerate four-wave mixing for phase conjugation with multipass geometries in a polymer laser dye saturable amplifier. Phase-conjugate energy reflectivity of as much as 20,000% with a four-pass geometry in the longitudinally pumped polymer dye was obtained at 564 nm.
