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Photonic Hilbert transformers based on laterally apodized integrated waveguide Bragg gratings on a SOI wafer

Hamed Pishvai Bazargani, Maurizio Burla, Lukas Chrostowski, and José Azaña

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Abstract

We experimentally demonstrate high-performance integer and fractional-order photonic Hilbert transformers based on laterally apodized Bragg gratings in a silicon-on-insulator technology platform. The sub-millimeter-long gratings have been fabricated using single-etch electron beam lithography, and the resulting HT devices offer operation bandwidths approaching the THz range, with time-bandwidth products between 10 and 20.

© 2016 Optical Society of America

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