A highly efficient ultrafast optical Kerr shutter is studied with the use of newly synthesized organic low-molecular-weight compounds. A solution of 4-(N,N-diethylamino)-β-nitrostyrene gives a material response time of 4.0 ps. A 1-m-long and 4-μm-diameter-core fiber waveguide filled with the organic solution successfully reduces the gate power to less than 1 W. A group-delay analysis shows that picosecond switching operation is feasible with the solution fiber waveguide. The application of solid media for the purpose of faster switching operation is carried out with a solid block of 2,5-dichloro-terephthal-bis-(4-N,N-diethylaminoaniline) doped in poly(methyl methacrylate).
© 1994 Optical Society of America
Hirohisa Kanbara, Hideki Kobayashi, Toshikuni Kaino, Takashi Kurihara, Naoki Ooba, and Ken’ichi Kubodera, "Highly efficient ultrafast optical Kerr shutters with the use of organic nonlinear materials," J. Opt. Soc. Am. B 11, 2216-2223 (1994)