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Integrated optical pattern generation on thin-film lithium niobate with electro-optic modulators and phase-change material cells

Reconfigurable photonic integrated circuits enable high-bandwidth signal shaping with the prospect for scalability and compact footprint. Cointegration of electro-optical tunability with nonvolatile attenuation through functional materials allows for implementing photonic devices that operate on bot...

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Bibliographic Details
Main Authors: Bente, Ivonne (Author) , Brückerhoff-Plückelmann, Frank (Author) , Bankwitz, Julian Rasmus (Author) , Wendland, Daniel (Author) , Lomonte, Emma (Author) , Lenzini, Francesco (Author) , Wright, C. David (Author) , Bhaskaran, Harish (Author) , Pernice, Wolfram (Author)
Format: Article (Journal)
Language:English
Published: 2023
In: Journal of the Optical Society of America. B, Optical physics
Year: 2023, Volume: 40, Issue: 5, Pages: D78-D83
ISSN:1520-8540
DOI:10.1364/JOSAB.485957
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1364/JOSAB.485957
Verlag, lizenzpflichtig, Volltext: https://opg.optica.org/josab/abstract.cfm?uri=josab-40-5-D78
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Author Notes:Ivonne Bente, Frank Brückerhoff-Plückelmann, J. Rasmus Bankwitz, Daniel Wendland, Emma Lomonte, Francesco Lenzini, C. David Wright, Harish Bhaskaran, and Wolfram H.P. Pernice
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Summary:Reconfigurable photonic integrated circuits enable high-bandwidth signal shaping with the prospect for scalability and compact footprint. Cointegration of electro-optical tunability with nonvolatile attenuation through functional materials allows for implementing photonic devices that operate on both phase and amplitude. Based on this approach, we propose an integrated photonic design for optical pattern generation deploying a continuous-wave laser and a single electrical function generator. We employ the nonvolatile and reconfigurable phase-change material G e 2 S b 2 T e 5 (GST) as a tunable attenuator for an integrated photonic circuit on the lithium-niobate-on-insulator (LNOI) platform. The GST can be switched between its amorphous and crystalline phases, leading to an optical contrast of ≅18d B. Combining this with integrated electro-optical modulators with a 4 GHz bandwidth in LNOI enables the generation of short optical pulses, based on the principles of inverse discrete Fourier transform.
Item Description:Veröffentlicht: 1. Mai 2023
Gesehen am 24.07.2023
Physical Description:Online Resource
ISSN:1520-8540
DOI:10.1364/JOSAB.485957

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