Photonic chip based transmitter optimization and receiver demultiplexing of a 1.28 Tbit/s OTDM signal
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We demonstrate chip-based Tbaud optical signal processing for all-optical performance monitoring, switching and demultiplexing based on the instantaneous Kerr nonlinearity in a dispersion-engineered As_2S_3 planar waveguide. At the Tbaud transmitter, we use a THz bandwidth radio-frequency spectrum analyzer to perform all-optical performance monitoring and to optimize the optical time division multiplexing stages as well as mitigate impairments, for example, dispersion. At the Tbaud receiver, we demonstrate error-free demultiplexing of a 1.28 Tbit/s single wavelength, return-to-zero signal to 10 Gbit/s via four-wave mixing with negligible system penalty (<0.5 dB). Excellent performance, including high four-wave mixing conversion efficiency and no indication of an error-floor, was achieved. Our results establish the feasibility of Tbaud signal processing using compact nonlinear planar waveguides for Tbit/s Ethernet applications.
Vo, T. D., Hu, H., Galili, M., Palushani, E., Xu, J., Oxenløwe, L. K., Madden, S. J., Choi, D. Y., Bulla, D. A. P., Pelusi, M. D., Schröder, J., Luther-Davies, B., & Eggleton, B. J. (2010). Photonic chip based transmitter optimization and receiver demultiplexing of a 1.28 Tbit/s OTDM signal. Optics Express, 18(16), 17252-17261. https://doi.org/10.1364/OE.18.017252