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

Document Type

Article

Publication Date

12-1-2021

Abstract

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.

Keywords

Laser, Optical beam-forming networks, Optical signal processing devices

Publication Title

IET Optoelectronics

Divisions

Science

Funders

PGRC UOW KDU University College (KDURG/2019/1/004)

Volume

15

Issue

6

Publisher

Wiley

Publisher Location

111 RIVER ST, HOBOKEN 07030-5774, NJ USA

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