Low-power, multiport, ultrafast, parametric switching in cascaded waveguide couplers
Abbreviated Journal Title
Appl. Phys. Lett.
NONLINEAR DIRECTIONAL COUPLER; LITHIUM-NIOBATE; Physics, Applied
We explore an approach to multiport, phase-insensitive all-optical switching of milliwatt power signals based on linear coupling in cascaded directional couplers and on nonlinear parametric gain via the second-order nonlinearity. For the basic unit, a two-core coupler, we experimentally demonstrated ultrafast transparent switching of 1550 nm signals triggered by 5-ps-long control pulses at approximate to 775 nm with a peak power of 1.3 W. Theoretically, we show that this concept has the potential for terabit/s switching with a few picojoules control energy and without pulse degradation. (c) 2005 American Institute of Physics.
Applied Physics Letters
"Low-power, multiport, ultrafast, parametric switching in cascaded waveguide couplers" (2005). Faculty Bibliography 2000s. 5639.