Vitali, V., Domínguez Bucio, T., Liu, H., Luque-González, J., Jurado-Romero, F., Ortega-Moñux, A., Churchill, G., Gates, J., Hillier, J., Kalfagiannis, N. ORCID: 0000-0002-4030-5525, Melati, D., Schmid, J., Cristiani, I., Cheben, P., Wangüemert-Pérez, J.G., Molina-Fernández, I., Gardes, F., Lacava, C. and Petropoulos, P., 2023. Fully-integrated and broadband Si-rich silicon nitride wavelength converter based on Bragg scattering intermodal four-wave mixing. Photonics Research. ISSN 2327-9125
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Abstract
Intermodal four-wave mixing (FWM) processes have recently attracted significant interest for all-optical signal processing applications thanks to the possibility to control the propagation properties of waves exciting distinct spatial modes of the same waveguide. This allows, in principle, to place signals in different spectral regions and satisfy the phase matching condition over considerably larger bandwidths compared to intramodal processes. However, the demonstrations reported so far have shown a limited bandwidth and suffered from the lack of on-chip components designed for broadband manipulation of different modes. We demonstrate here a silicon-rich silicon nitride wavelength converter based on Bragg scattering intermodal FWM, which integrates mode conversion, multiplexing and de-multiplexing functionalities on-chip. The system enables wavelength conversion between pump waves and a signal located in different telecommunication bands (separated by 60 nm) with a 3dB bandwidth exceeding 70 nm, which represents the widest bandwidth ever achieved in an intermodal FWM-based system.
Item Type: | Journal article | ||||||
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Publication Title: | Photonics Research | ||||||
Creators: | Vitali, V., Domínguez Bucio, T., Liu, H., Luque-González, J., Jurado-Romero, F., Ortega-Moñux, A., Churchill, G., Gates, J., Hillier, J., Kalfagiannis, N., Melati, D., Schmid, J., Cristiani, I., Cheben, P., Wangüemert-Pérez, J.G., Molina-Fernández, I., Gardes, F., Lacava, C. and Petropoulos, P. | ||||||
Publisher: | Optica Publishing Group | ||||||
Date: | 21 November 2023 | ||||||
ISSN: | 2327-9125 | ||||||
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Divisions: | Schools > School of Science and Technology | ||||||
Record created by: | Jonathan Gallacher | ||||||
Date Added: | 31 Jan 2024 14:53 | ||||||
Last Modified: | 21 Nov 2024 03:00 | ||||||
URI: | https://irep.ntu.ac.uk/id/eprint/50777 |
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