1.5 and 2.0 mu m all-optical modulators based on niobium-carbide (Nb2C)-PVA film

Ahmad, H. and Kamely, A. A. and Zaini, M. K. A. and Samion, M. Z. and Zamzuri, A. K. and Thambiratnam, K. (2021) 1.5 and 2.0 mu m all-optical modulators based on niobium-carbide (Nb2C)-PVA film. Laser Physics Letters, 18 (8). ISSN 1612-2011, DOI https://doi.org/10.1088/1612-202X/ac0e3c.

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In this work, a niobium carbide (Nb2C) was proposed and demonstrated as an optical modulator for operation in the 1.5 and the 2.0 mu m wavelength region. The Nb2C solution was first prepared using the liquid phase exfoliation technique, and then embedded into a polyvinyl alcohol (PVA) polymer to form a thin film. Based on the thermo-optic effect exhibited by the Nb2C-PVA film, successful modulations of the 1.5 and the 2.0 mu m signals were observed, where the signals could be modulated up to a frequency of 5 kHz. The modulators could also be employed in an all-optical signal processing system, in which information codes from the control light could be conveyed through both signals. The integration of the Nb2C-PVA film into the all-optical modulation system shows the material efficiency to modulate the transmission light with high stability, showing significant potential of the device in an all-optical signal processing system.

Item Type: Article
Funders: Universiti Malaya (RK021-2019) (TOP100PRC) (RU 002-2020), International Islamic University Malaysia (MOHE) (FRGS/1/2018/TK04/UIAM/02/16), Ministry of Education, Malaysia (HiCoE Phase II (PRC-2014))
Uncontrolled Keywords: All-optical modulator; Niobium-carbides (Nb2C); Thermo-optic effect
Subjects: Q Science > QC Physics
Depositing User: Ms Zaharah Ramly
Date Deposited: 05 Mar 2022 05:33
Last Modified: 05 Mar 2022 05:33
URI: http://eprints.um.edu.my/id/eprint/28199

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