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Switching power reduction using a pumped nonlinear directional coupler

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2 Author(s)
Davis, M.K. ; Edward L. Ginzton Lab., Stanford Univ., CA, USA ; Digonnet, M.J.F.

We show that in a nonlinear directional coupler (NLDC) in which the signal 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 /spl radic/3 times higher than for a Mach-Zehnder switch, which makes the NLDC even more appealing for practical multiplexing and switching applications.

Published in:

Photonics Technology Letters, IEEE  (Volume:8 ,  Issue: 10 )