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Low-power, multiport, ultrafast, parametric switching in cascaded waveguide couplers
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View: Figures


Image of FIG. 1.
FIG. 1.

switching matrix consisting of a sequence of five directional couplers. The basic switching element is marked by the dashed line. and are the control beam inputs and signal beam outputs, respectively.

Image of FIG. 2.
FIG. 2.

(Color online) Simulated dependence of the signal and idler output on the control input power for three different coupler configurations (cw excitation). Transparent operation is reached at the dashed line where the signal output power equals the input power. The total device length for all three configurations is . In configuration A and B the coupling length is , in configuration C it is .

Image of FIG. 3.
FIG. 3.

(Color online) Measured (solid) and simulated (dashed) output spectra of the control, signal, and idler after parametric interaction in the coupler configurations A and B ( control input peak power).

Image of FIG. 4.
FIG. 4.

(Color online) Simulated input and output pulses from configuration C plotted in time frames fixed to the pulse centers.


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Scitation: Low-power, multiport, ultrafast, parametric switching in cascaded waveguide couplers