Archivio Istituzionale della RicercaWe present a novel bandwidth programmable photonic integrated filter enabled by Phase-Change Materials (PCM). PCMs are used to enhance and unlock dynamic and non-volatile spectral shaping in Grating-assisted Contra-Directional Couplers (GACDC). Through the use of chalcogenide PCM, such as Sb2Se3, the spectral response of these devices can be programmed beyond the traditional limitations of thermo-optic control, while maintaining identical footprint and similar losses. The device is designed and simulated considering thermal control of the crystallization fraction of the Sb2Se3 layer, which is compatible with traditional micro heaters available in standard manufacturing process.
Programmable non-volatile spectral shaping in PCM-enhanced grating-assisted couplers / Tunesi, Lorenzo; Mahdian, Mohammad Amin; Shafiee, Amin; Carena, Andrea; Curri, Vittorio; Nikdast, Mahdi; Bardella, Paolo. - ELETTRONICO. - 13362:(2025), pp. 19-23. (Intervento presentato al convegno SPIE Photonics West - BiOS tenutosi a San Francisco (USA) nel 25-31 January 2025) [10.1117/12.3044283].
Programmable non-volatile spectral shaping in PCM-enhanced grating-assisted couplers
Tunesi, Lorenzo;Carena, Andrea;Curri, Vittorio;Bardella, Paolo
2025
Abstract
We present a novel bandwidth programmable photonic integrated filter enabled by Phase-Change Materials (PCM). PCMs are used to enhance and unlock dynamic and non-volatile spectral shaping in Grating-assisted Contra-Directional Couplers (GACDC). Through the use of chalcogenide PCM, such as Sb2Se3, the spectral response of these devices can be programmed beyond the traditional limitations of thermo-optic control, while maintaining identical footprint and similar losses. The device is designed and simulated considering thermal control of the crystallization fraction of the Sb2Se3 layer, which is compatible with traditional micro heaters available in standard manufacturing process.
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SPIE25___Programmable_non_voltatile_spectral_shaping_in_PCM_enhanced_grating_assisted_couplers (1).pdf
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1336219.pdf
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https://hdl.handle.net/11583/2999644