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Lithium niobate-based programmable micro-diffraction device for wavelength-selective switching applications
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Paper Abstract

A new solid-state Wavelength-Selective Switch (WSS) based on a Programmable Micro-Diffractive Grating (PMDG) fabricated over a Lithium-Niobate (LiNbO3) substrate is presented, and its operation described. The device consists of a periodic arrangement of ridge waveguides whose optical phase delay can be individually or collectively tuned through the electro-optics (Pockels) effect. Each waveguide is patterned with a metal electrode and connected to an external microprocessor-based driving unit. By appropriately programming the phase shift induced on each waveguide, the far-field diffraction pattern of the grating can be shaped in order to implement complex all-optical signal processing functions, such as 1-to-M demultiplexing, beam splitting, beam steering or wavelength-selective filtering. Once integrated within a telecommunications infrastructure, this component can clearly enhance the level of flexibility and robustness of the network optical physical layer.

Paper Details

Date Published: 16 October 2019
PDF: 6 pages
Proc. SPIE 11163, Emerging Imaging and Sensing Technologies for Security and Defence IV, 111630C (16 October 2019); doi: 10.1117/12.2532246
Show Author Affiliations
A. Parini, Prometheus S.r.l. (Italy)
Univ. degli Studi di Ferrara (Italy)
M. Chiarini, Prometheus S.r.l. (Italy)
G. Basti, Lateran Univ. I.R.A.S. (Italy)
G. G. Bentini, Prometheus S.r.l. (Italy)
CNR-IMM (Italy)


Published in SPIE Proceedings Vol. 11163:
Emerging Imaging and Sensing Technologies for Security and Defence IV
Gerald S. Buller; Richard C. Hollins; Robert A. Lamb; Martin Laurenzis, Editor(s)

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