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Proceedings Paper

Noninvasive monitoring and control in silicon photonics
Author(s): Andrea Annoni; Douglas Oliveira De Aguiar; Andrea Melloni; Emanuele Guglielmi; Marco Carminati; Giorgio Ferrari; Annika Buchheit; Hans-Dieter Wiemhöfer; Marina Muñoz-Castro; Charalambos Klitis; Marc Sorel; Francesco Morichetti
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Paper Abstract

Advanced technologies to implement on-chip monitoring and feedback control operations are required to make silicon photonics scale to large-scale-of-integration. Transparent detectors and energy saving actuators are key ingredients of this paradigm. On-chip detectors are required to be minimally invasive in order to allow their integration in key spots of the circuit, thus easing control operation through the partitioning of complex architectures in smaller cluster of devices and the realization of local feedback control loops. Non volatile integrated actuators, which are reversible switching devices that can maintain the state without the need of “always on” power dissipation, are also needed to reduce the power consumption required by tuning, reconfiguration and stabilization operations. Addressing these issues, in this contribution we report on the performance of a recently developed transparent detector, named ContacLess Integrated Photonic Probe (CLIPP), that can monitor in line the intensity of the light in silicon waveguides without introducing any photon absorption in excess to the waveguide propagation loss. A systematic characterization of the CLIPP detector is here presented, specifically addressing the dependence of the CLIPP performance on the waveguide geometry and on the polarization and wavelength of the light. Concerning the development of non-volatile integrated actuators, we demonstrate the possibility to manipulate the light transmission in silicon waveguides by electrochemical insertion of mobile ions in a mixed ionic and electronic conductor (MIEC) used as upper cladding of a silicon waveguide. A finely controllable and reversible change of the imaginary part of the refractive index of the MIEC film is exploited to trim the loss of a silicon waveguide and to modify the frequency response of a silicon microring resonator.

Paper Details

Date Published: 30 May 2017
PDF: 8 pages
Proc. SPIE 10249, Integrated Photonics: Materials, Devices, and Applications IV, 102490F (30 May 2017); doi: 10.1117/12.2268880
Show Author Affiliations
Andrea Annoni, Politecnico di Milano (Italy)
Douglas Oliveira De Aguiar, Politecnico di Milano (Italy)
Andrea Melloni, Politecnico di Milano (Italy)
Emanuele Guglielmi, Politecnico di Milano (Italy)
Marco Carminati, Politecnico di Milano (Italy)
Giorgio Ferrari, Politecnico di Milano (Italy)
Annika Buchheit, Univ. of Münster (Germany)
Hans-Dieter Wiemhöfer, Univ. of Münster (Germany)
Marina Muñoz-Castro, Univ. of Münster (Germany)
Charalambos Klitis, Univ. of Glasgow (United Kingdom)
Marc Sorel, Univ. of Glasgow (United Kingdom)
Francesco Morichetti, Politecnico di Milano (Italy)


Published in SPIE Proceedings Vol. 10249:
Integrated Photonics: Materials, Devices, and Applications IV
Jean-Marc Fédéli; Laurent Vivien, Editor(s)

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