Abstract
We present the design and the fabrication of compact tunable silicon-on-insulator bandpass filters based on the integration of a Mach–Zehnder interferometer with ring resonators and activated via thermo-optic phase shifters. The proposed architecture provides wide filter bandwidth tunability from 10% to 90% of the free spectral range preserving the filter off-band rejection. Possible applications are channel subset selection in wavelength division multiplexing optical systems, adaptive filtering to signal bandwidth, and reconfigurable filters for gridless networking.
Original language | English |
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Pages (from-to) | 3669-3671 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 37 |
Issue number | 17 |
DOIs | |
Publication status | Published - 1 Sept 2012 |
Keywords
- gridless networking
- reconfigurable silicon filter
- bandwidth tunability