We report on the design, fabrication, and characterization of a filter for demultiplexing in the wavelength division domain achieved with a H0 cavity on a III-V photonic crystal (PhC) membrane. This device is single mode, the total insertion losses are about 10.5 dB, the drop efficiency is close to 40%, and the channel isolation can exceed 20 dB at 500 GHz. A 28-Gb/s nonreturn to zero (NRZ) wavelength demultiplexing shows <; 0.5-dB penalties. Crosstalk measurements demonstrate <; 1-dB penalty when adjacent channels are spaced as closely as 235 GHz, demonstrating that this filter has good compatibility with LAN-wavelength division multiplexing. Finally, a 56-Gb/s NRZ-differential quadrature phase-shift keying signal filtering is assessed, revealing a negligible penalty of ( <; 0.5 dB).

Wavelength Division Demultiplexing and Crosstalk Assessment of a Photonic Crystal Filter

MALAGUTI, Stefania;BELLANCA, Gaetano;TRILLO, Stefano
2012

Abstract

We report on the design, fabrication, and characterization of a filter for demultiplexing in the wavelength division domain achieved with a H0 cavity on a III-V photonic crystal (PhC) membrane. This device is single mode, the total insertion losses are about 10.5 dB, the drop efficiency is close to 40%, and the channel isolation can exceed 20 dB at 500 GHz. A 28-Gb/s nonreturn to zero (NRZ) wavelength demultiplexing shows <; 0.5-dB penalties. Crosstalk measurements demonstrate <; 1-dB penalty when adjacent channels are spaced as closely as 235 GHz, demonstrating that this filter has good compatibility with LAN-wavelength division multiplexing. Finally, a 56-Gb/s NRZ-differential quadrature phase-shift keying signal filtering is assessed, revealing a negligible penalty of ( <; 0.5 dB).
K., Lengle; M., Gay; L., Bramerie; J. C., Simon; S., Combrié; G., Lehoucq; A., De Rossi; Malaguti, Stefania; Bellanca, Gaetano; Trillo, Stefano
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1815914
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