Picosecond switching induced by saturable absorption in a nonlinear directional coupler

Finlayson, N.; Banyai, W. C.; Wright, E. M.; Seaton, C. T.; Stegeman, G. I.; Cullen, T. J.; Ironside, C. N.
September 1988
Applied Physics Letters;9/26/1988, Vol. 53 Issue 13, p1144
Academic Journal
Fluence-induced changes in absorption of a semiconductor-doped-glass directional coupler have resulted in nonlinear optical switching on a picosecond time scale. The functional dependence on the incident fluence confirms that the switching is dominated by absorption saturation.


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