Fiber integrated wavelength converter based on a silicon core fiber with a nano-spike coupler

Abstract

An all-fiber integrated nonlinear silicon photonic wavelength converter has been proposed and fabricated using the silicon core fiber platform. The silicon fiber was spliced directly to a conventional single mode fiber, facilitated via an inverse tapered nano-spike that helped to reduce the mode mismatch between the different core materials. Four-wave mixing-based wavelength conversion with an efficiency as high as −22.1 dB has been achieved for selected wavelengths across the C-band in a device length of only ~ 1 cm. Successful conversion of quadrature phase-shift keying signals at a 20-Gb/s bitrate, with a 1 to 2 dB penalty level at the bit error ratio (BER) = 3.8×10⁻³ , was used to demonstrate the suitability of the silicon fiber device for the construction of ultra-compact, all-fiber-based optical signal processing systems.

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Identifiers

ORCID for Meng Huang: orcid.org/0000-0002-5233-8519

ORCID for Ozan Aktaş: orcid.org/0000-0002-2255-7761

ORCID for Anna Peacock: orcid.org/0000-0002-1940-7172

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