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.
Original language | English |
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Pages (from-to) | 19711-19720 |
Number of pages | 10 |
Journal | Optics Express |
Volume | 25 |
Issue number | 17 |
Early online date | 7 Aug 2017 |
DOIs | |
Publication status | Published - 21 Aug 2017 |
Keywords
- integrated optical devices
- wavelength conversion devices
- photonic integrated circuits (PICs)