Mk. Davis et Mjf. Digonnet, SWITCHING POWER REDUCTION USING A PUMPED NONLINEAR DIRECTIONAL COUPLER, IEEE photonics technology letters, 8(10), 1996, pp. 1328-1330
We show that in a nonlinear directional coupler (NLDC) in which the si
gnal is controlled by a pump of appropriate and different wavelength,
the power needed for full switching is 3 times lower than for the same
device used as a self switch. This power requirement is only root 3 t
imes higher than for a Mach-Zehnder snitch, which makes the NLDC even
more appealing for practical multiplexing and switching applications.