A numerical study of the all-optical switching properties of solitons in an erbium-doped nonlinear fiber coupler is presented. The small gain provided by the erbium both lowers and sharpens the switching threshold, while producing pulse-compression factors of 3 to 9. As a result, we show that it is possible to achieve all-optical switching, amplification, and compression of short pulses in a single device.
© 1991 Optical Society of America
James Wilson, G. I. Stegeman, and E. M. Wright, "Soliton switching in an erbium-doped nonlinear fiber coupler," Opt. Lett. 16, 1653-1655 (1991)