1.9 mu m mode-locked fiber laser based on evanescent field interaction with metallic vanadium diselenide (VSe2)

Document Type

Article

Publication Date

3-1-2021

Abstract

A stable passively mode-locked Thulium/Holmium-doped fiber laser (THDFL) was demonstrated by depositing layers of vanadium diselenide (VSe2) onto a D-shaped fiber using the drop-casting method. The VSe2-coated D-shaped fiber was then incorporated into the ring cavity as a saturable absorber (SA). The cavity has a net dispersion of-1.37 ps2 while the central wavelength of the output spectrum was 1912 nm with a full width at half-maximum (FWHM) of 2.9 nm. The pulse repetition rate was 11.6 MHz with the pulse width of-1.4 ps at the maximum pump power. The fundamental frequency of the mode-locked output had a signal-to-noise ratio (SNR) of-47 dB. These results indicate that the metallic TMD VSe2 can serve as an effective SA in optical fiber laser applications at the 2.0 mu m region.

Keywords

Fiber laser, Mode-locked, Evanescent field interaction, Vanadium diselenide

Publication Title

Optik

Divisions

Science

Funders

Universiti Malaya (RK021-2019) (TOP100PRC) (RU011-2019),International Islamic University Malaysia [MOHE] (FRGS/1/2018/TK04/UIAM/02/16),Ministry of Education, Malaysia (HiCoE Phase II Funding)

Volume

230

Publisher

Elsevier GMBH

Publisher Location

HACKERBRUCKE 6, 80335 MUNICH, GERMANY

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