Low-power, multiport, ultrafast, parametric switching in cascaded waveguide couplers | Zendy

Roland Schiek | Zendy; Robert Iwanow | Zendy; G. I. Stegeman | Zendy; Thomas Pertsch | Zendy; F. Lederer | Zendy; Yoo Hong Min | Zendy; W. Sohler | Zendy

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

Author(s) -

Roland Schiek,

Robert Iwanow,

G. I. Stegeman,

Thomas Pertsch,

F. Lederer,

Yoo Hong Min,

W. Sohler

Publication year - 2005

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.1991993

Subject(s) - ultrashort pulse , power dividers and directional couplers , parametric statistics , optical switch , optics , terabit , power (physics) , waveguide , coupling (piping) , nonlinear optics , nonlinear system , energy (signal processing) , optoelectronics , switching power , physics , materials science , laser , wavelength division multiplexing , wavelength , statistics , mathematics , quantum mechanics , metallurgy

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 1550nm signals triggered by 5-ps-long control pulses at ≈775nm with a peak power of 1.3W. Theoretically, we show that this concept has the potential for terabit/s switching with a few picojoules control energy and without pulse degradation.

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