Silicon photonic filters with high rejection of both TE and TM modes for on-chip four wave mixing applications

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Cantarella, Giuseppe and Klitis, Charalambos and Sorel, Marc and Strain, Michael J. (2017) Silicon photonic filters with high rejection of both TE and TM modes for on-chip four wave mixing applications. Optics Express, 25 (17). pp. 19711-19720. ISSN 1094-4087 (https://doi.org/10.1364/OE.25.019711)

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Abstract

Wavelength selective filters represent one of the key elements for photonic integrated circuits (PIC) and many of their applications in linear and non-linear optics. In devices optimised for single polarisation operation, cross-polarisation scattering can significantly limit the achievable filter rejection. An on-chip filter consisting of elements to filter both TE and TM polarisations is demonstrated, based on a cascaded ring resonator geometry, which exhibits a high total optical rejection of over 60 dB. Monolithic integration of a cascaded ring filter with a four-wave mixing micro-ring device is also experimentally demonstrated with a FWM efficiency of -22dB and pump filter extinction of 62dB.

ORCID iDs

Cantarella, Giuseppe ORCID logoORCID: https://orcid.org/0000-0002-1344-8483, Klitis, Charalambos, Sorel, Marc and Strain, Michael J. ORCID logoORCID: https://orcid.org/0000-0002-9752-3144;
CORE (COnnecting REpositories)