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

A. Parini; M. Chiarini; G. Basti; G. G. Bentini

doi:10.1117/12.2532246

16 October 2019 Lithium niobate-based programmable micro-diffraction device for wavelength-selective switching applications

A. Parini, M. Chiarini, G. Basti, G. G. Bentini

Author Affiliations +

Proceedings Volume 11163, Emerging Imaging and Sensing Technologies for Security and Defence IV; 111630C (2019) https://doi.org/10.1117/12.2532246
Event: SPIE Security + Defence, 2019, Strasbourg, France

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.

Conference Presentation

Citation Download Citation

A. Parini, M. Chiarini, G. Basti, and G. G. Bentini "Lithium niobate-based programmable micro-diffraction device for wavelength-selective switching applications", Proc. SPIE 11163, Emerging Imaging and Sensing Technologies for Security and Defence IV, 111630C (16 October 2019); https://doi.org/10.1117/12.2532246

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