We present a comprehensive design, fabrication, and characterization analysis of compact silicon-on-insulator bandpass filters with widely tunable bandwidth. The filter architecture is based on an unbalanced Mach–Zehnder interferometer loaded with a pair of ring resonators. A wide bandwidth tunability (from 10% to 90% FSR) can be achieved by controlling the resonant frequency of the rings while preserving a good filter off-band rejection. Design rules are provided that take into account fabrication tolerances as well as losses. Furthermore, the use of tunable couplers allows a more flexible shaping of the spectral response of the filter. The sensitivity with respect to nonlinear effects is carefully investigated. Operation over a wavelength spectrum of ${20} \ {\rm n}{\rm m}$ is demonstrated, making the device suitable for channel subset selection in WDM systems, reconfigurable filters for gridless networking and adaptive filtering of signals.

Photonic Integrated Filter With Widely Tunable Bandwidth / Piero Orlandi; Francesco Morichetti; Michael John Strain; Marc Sorel; Paolo Bassi; Andrea Melloni. - In: JOURNAL OF LIGHTWAVE TECHNOLOGY. - ISSN 0733-8724. - STAMPA. - 32:5(2014), pp. 897-907. [10.1109/JLT.2013.2294345]

Photonic Integrated Filter With Widely Tunable Bandwidth

ORLANDI, PIERO;BASSI, PAOLO;
2014

Abstract

We present a comprehensive design, fabrication, and characterization analysis of compact silicon-on-insulator bandpass filters with widely tunable bandwidth. The filter architecture is based on an unbalanced Mach–Zehnder interferometer loaded with a pair of ring resonators. A wide bandwidth tunability (from 10% to 90% FSR) can be achieved by controlling the resonant frequency of the rings while preserving a good filter off-band rejection. Design rules are provided that take into account fabrication tolerances as well as losses. Furthermore, the use of tunable couplers allows a more flexible shaping of the spectral response of the filter. The sensitivity with respect to nonlinear effects is carefully investigated. Operation over a wavelength spectrum of ${20} \ {\rm n}{\rm m}$ is demonstrated, making the device suitable for channel subset selection in WDM systems, reconfigurable filters for gridless networking and adaptive filtering of signals.
2014
Photonic Integrated Filter With Widely Tunable Bandwidth / Piero Orlandi; Francesco Morichetti; Michael John Strain; Marc Sorel; Paolo Bassi; Andrea Melloni. - In: JOURNAL OF LIGHTWAVE TECHNOLOGY. - ISSN 0733-8724. - STAMPA. - 32:5(2014), pp. 897-907. [10.1109/JLT.2013.2294345]
Piero Orlandi; Francesco Morichetti; Michael John Strain; Marc Sorel; Paolo Bassi; Andrea Melloni
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/224084
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