Photon‐to‐photon polarization modulation using Mxene thin film as modulator

Abstract

In this work, photon-to-photon polarization modulation is experimentally demonstrated using a Mxene material, Ti2C thin film as a modulator. S-band signal (1500 nm) polarization state is modulated by a control pump (1400 nm) in the Ti2C thin film based on the thermo-optic effect. A total of 34.67˚of polarization rotation is achieved with the variation of pump power from 0 to 223 mW. From the regression analysis, the system is operated in highly linear condition, with R 2 value of 0.991 and an efficiency of 0.1589˚/mW. Throughout the polarization rotational range, the variation of ellipticity is less than 5˚while the variation of output power is less than 3.5 dB.

Tungsten disulfide coated side‐polished fibre as polarisation state modulator in all‐optical system

“…Moreover, the proposed all‐fibre polarisation state modulation system is ease and convenient to integrate with other types of application. There are reported studies using Mxene [48] and metamaterials [49] as polarisation modulator, which have achieved 34.67° and 60°, respectively. In another reported work, MoS 2 is used to achieve polarisation rotation of ∼70°, with ellipticity fluctuation of ∼10° [50].…”