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Large-FSR Thermally Tunable Double-Ring Filters for WDM Applications in Silicon Photonics

C. L. Manganelli 1 P. Pintus 1 F. Gambini 1 D. Fowler 2 M. Fournier 2 S. Faralli 1 C. Kopp 2 C. J. Oton 1
1 SSSUP - Scuola Universitaria Superiore Sant'Anna [Pisa]
2 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information
Abstract : We present the design procedure and experimental results of thermally tunable double ring resonators for integrated wavelength division multiplexing applications. A detailed analytical model specific for double rings is described, and a modified racetrack geometry using Bezier bends is used to reduce bending loss. We demonstrate devices with a free-spectral-range up to 2.4 THz ( 19 nm) around 1550 nm and nonadjacent channel rejection higher than 35 dB. The experimental results of thermally tunable double ring resonators is also presented with doped silicon integrated heaters, allowing the device to be used as a tunable filter or a switch.
Keywords : Integrated optics optical switches ring resonators.
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https://hal-cea.archives-ouvertes.fr/cea-02202439
Contributor : Marianne Leriche <>
Submitted on : Wednesday, July 31, 2019 - 4:34:58 PM
Last modification on : Thursday, June 11, 2020 - 5:04:09 PM

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C. L. Manganelli, P. Pintus, F. Gambini, D. Fowler, M. Fournier, et al.. Large-FSR Thermally Tunable Double-Ring Filters for WDM Applications in Silicon Photonics. IEEE Photonics Journal, Institute of Electrical and Electronics Engineers (IEEE), 2017, 9 (1), pp.6600310. ⟨10.1109/JPHOT.2017.2662480⟩. ⟨cea-02202439⟩

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