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

Document Type

Article

Publication Date

8-1-2021

Abstract

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.

Keywords

All-optical modulator, Niobium-carbides (Nb2C), Thermo-optic effect

Publication Title

Laser Physics Letters

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))

Volume

18

Issue

8

Publisher

IOP Publishing

Publisher Location

TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND

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