Photo-thermal tuning of graphene oxide coated integrated optical waveguides

Yang Qu; Yunyi Yang; Jiayang Wu; Yuning Zhang; Linnan Jia; Houssein El Dirani; Romain Crochemore; Corrado Sciancalepore; Pierre Demongodin; Christian Grillet; Christelle Monat; Baohua Jia; David J. Moss

doi:10.1117/12.2647954

17 March 2023 Photo-thermal tuning of graphene oxide coated integrated optical waveguides

Yang Qu, Yunyi Yang, Jiayang Wu, Yuning Zhang, Linnan Jia, Houssein El Dirani, Romain Crochemore, Corrado Sciancalepore, Pierre Demongodin, Christian Grillet, Christelle Monat, Baohua Jia, David J. Moss

Author Affiliations +

Proceedings Volume 12424, Integrated Optics: Devices, Materials, and Technologies XXVII; 1242408 (2023) https://doi.org/10.1117/12.2647954
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

The power-sensitive photo-thermal tuning (PTT) of two-dimensional (2D) graphene oxide (GO) integrated on the top surface of silicon nitride (SiN) waveguides is experimentally investigated. For SiN waveguide coating with monolayer GO, the light power thresholds for reversible and permanent GO reduction are measured. There are three reduction stages identified based on the presence of reversible versus permanent reduction. We also compared the PTT induced by a continuous-wave laser and a pulsed laser with the same average power, confirming that the PTT is primarily determined by the average input power.

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Yang Qu, Yunyi Yang, Jiayang Wu, Yuning Zhang, Linnan Jia, Houssein El Dirani, Romain Crochemore, Corrado Sciancalepore, Pierre Demongodin, Christian Grillet, Christelle Monat, Baohua Jia, and David J. Moss "Photo-thermal tuning of graphene oxide coated integrated optical waveguides", Proc. SPIE 12424, Integrated Optics: Devices, Materials, and Technologies XXVII, 1242408 (17 March 2023); https://doi.org/10.1117/12.2647954

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