All-fibre phase shifter based on tapered fibre coated with MoWS2-rGO

Tan, Sin Jin and Ahmad, Harith and Tiu, Zian Cheak (2021) All-fibre phase shifter based on tapered fibre coated with MoWS2-rGO. IET Optoelectronics, 15 (6). pp. 264-269. ISSN 1751-8768, DOI

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In this work, an all-fibre phase shifter using tapered fibre coated with molybdenum tungsten disulfide - reduced graphene oxide (MoWS2-rGO) is demonstrated. The large evanescent field of tapered fibre allows MoWS2-rGO to absorb injected light from a 1400-nm pump. It subsequently modifies the refractive index of both an MoWS2-rGO solution and tapered fibre because of the thermo-optic effect. A maximum wavelength shift of 2.489 nm is observed and the equivalent phase shift is 0.91 pi. The efficiency of the phase shifter is calculated at 0.0175 nm/mW. The proposed phase shifter is beneficial for a variety of applications, specifically for future optical beam-forming networks and all optical signal processing devices.

Item Type: Article
Funders: PGRC UOW KDU University College (KDURG/2019/1/004)
Uncontrolled Keywords: Laser; Optical beam-forming networks; Optical signal processing devices
Subjects: Q Science > Q Science (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Science
Depositing User: Ms Zaharah Ramly
Date Deposited: 10 Mar 2022 08:42
Last Modified: 10 Mar 2022 08:42

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