Analysis of high-contrast all-optical dual-wavelength switching in asymmetric dual-core fibers

We systematically present experimental and theoretical results for the dual-wavelength switching of 1560 nm, 75 fs signal pulses (SPs) driven by 1030 nm, and 270 fs control pulses (CPs) in a dual-core fiber (DCF). We demonstrate a switching contrast of 31.9 dB, corresponding to a propagation distanc...

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Veröffentlicht in:Optics letters 2024-01, Vol.49 (1), p.149-152
Hauptverfasser: The Tai, Le Xuan, Longobucco, Mattia, Viet Hung, Nguyen, Pałuba, Bartosz, Trippenbach, Marek, Malomed, Boris A, Astrauskas, Ignas, Pugžlys, Audrius, Baltuška, Andrius, Buczyński, Ryszard, Bugár, Ignác
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Sprache:eng
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Zusammenfassung:We systematically present experimental and theoretical results for the dual-wavelength switching of 1560 nm, 75 fs signal pulses (SPs) driven by 1030 nm, and 270 fs control pulses (CPs) in a dual-core fiber (DCF). We demonstrate a switching contrast of 31.9 dB, corresponding to a propagation distance of 14 mm, achieved by launching temporally synchronized SP-CP pairs into the fast core of the DCF with moderate inter-core asymmetry. Our analysis employs a system of three coupled propagation equations to identify the compensation of the asymmetry by nonlinearity as the physical mechanism behind the efficient switching performance.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.500292