1 May 2015 Nonlinear optical signal processing in high figure of merit CMOS compatible platforms
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Photonic integrated circuits that exploit nonlinear optics in order to generate and process signals all-optically have achieved performance far superior to that possible electronically - particularly with respect to speed. Although silicon-on-insulator has been the leading platform for nonlinear optics for some time, its high two-photon absorption at telecommunications wavelengths poses a fundamental limitation. We review the recent achievements based in new CMOS-compatible platforms that are better suited than SOI for nonlinear optics, focusing on amorphous silicon and Hydex glass. We highlight their potential as well as the challenges to achieving practical solutions for many key applications. These material systems have opened up many new capabilities such as on-chip optical frequency comb generation and ultrafast optical pulse generation and measurement.
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D. J. Moss, D. J. Moss, R. Morandotti, R. Morandotti, } "Nonlinear optical signal processing in high figure of merit CMOS compatible platforms", Proc. SPIE 9516, Integrated Optics: Physics and Simulations II, 951606 (1 May 2015); doi: 10.1117/12.2180669; https://doi.org/10.1117/12.2180669

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