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
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))
Publication Title
Laser Physics Letters
Volume
18
Issue
8
Publisher
IOP Publishing
Publisher Location
TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND