Third-order nonlinearity of optical material has been found to be very useful for group velocity controlling. The velocity of a pulse may be changed by tuning its intensity or using an extra CW pump.
© 2006 Optical Society of America
Q. Yang, J. T. Seo, N. Xu, B. Tabibi, S. Ma, H. Wang, S. S. Jung, and M. Namkung, "Controlling of the Group Velocity Using Third-Order Nonlinearity," in Frontiers in Optics, OSA Technical Digest (CD) (Optical Society of America, 2006), paper JWD128.
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