Format

Send to

Choose Destination
Opt Lett. 2003 Dec 15;28(24):2506-8.

All-optical transistor action with bistable switching in a photonic crystal cross-waveguide geometry.

Author information

1
Ginzton Laboratory, Stanford University, Stanford, California 94304, USA.

Abstract

We demonstrate all-optical switching action in a nonlinear photonic crystal cross-waveguide geometry with instantaneous Kerr nonlinearity, in which the transmission of a signal can be reversibly switched on and off by a control input. Our geometry accomplishes both spatial and spectral separation between the signal and the control in the nonlinear regime. The device occupies a small footprint of a few micrometers squared and requires only a few milliwatts of power at a 10-Gbit/s switching rate by use of Kerr nonlinearity in AlGaAs below half the electronic bandgap. We also show that the switching dynamics, as revealed by both coupled-mode theory and finite-difference time domain simulations, exhibits collective behavior that can be exploited to generate high-contrast logic levels and all-optical memory.

PMID:
14690129
DOI:
10.1364/ol.28.002506

Supplemental Content

Full text links

Icon for Optical Society of America
Loading ...
Support Center