Two experimental studies are presented illustrating applications of organic materials of high nonlinear refractive index to femtosecond light-pulse technology. One is intracavity pulse-compression of a colliding-pulse mode-locked dye laser with the addition of nonlinear organic materials into a saturable absorber solution. Another is femtosecond pulse compression external to the laser using nonlinear organic fibers. On the basis of the experimental results, the present problems and the optical properties that nonlinear organic materials should satisfy are discussed.
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Yamashita et al. (1990) studied this question.
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