High power passively mode-locked laser with Sb2Te3 deposited tapered fiber in Er/Yb doped fiber laser

Ahmad, Harith and Mansor, Nur Hidayah and Reduan, Siti Aisyah and Samion, Muhamad Zharif and Ithnahaini, Muhammad Umar Mustaqim and Yusoff, Norazriena (2022) High power passively mode-locked laser with Sb2Te3 deposited tapered fiber in Er/Yb doped fiber laser. Optical Fiber Technology, 73. ISSN 1068-5200, DOI https://doi.org/10.1016/j.yofte.2022.103013.

Full text not available from this repository.


Antimony telluride (Sb2Te3), one of the materials from the topological insulator (TI) family, was studied as a saturable absorber (SA) for producing high-power ultrafast lasers in the C-band region. In order to achieve a mode-locked operation, a tapered fiber with a tapered waist of 6 mu m was coated with Sb(2)Te(3 )to provide the interaction of the evanescent field with the material. Non-linear optical properties of the constructed SA include a 4.05 % modulation depth and a saturation intensity of 0.35 MW/cm(2). Mode-locked pulses were generated when the SA was placed inside the cavity. The mode-locked pulses were solitonic, having a center wavelength of 1561.5 nm and a pulse duration of 1.8 ps at a pump power of 461 mW. The fundamental frequency measured was 18 MHz within pump power ranging from 461 mW to 657 mW. The maximum average output power, pulse energy, and peak power obtained from the generated mode-locked pulses were 269 mW, 14.9 nJ, and 8.3 kW, respectively. The measured signal to noise (SNR) of 55 dB indicates the excellent stability of the mode-locked pulses. This is the first demonstration of mode-locked pulses utilizing Sb(2)Te(3 )coated tapered fiber as an SA in a double-clad erbium-ytterbium doped fiber (DC-EYDF) laser cavity that we are aware of.

Item Type: Article
Funders: Universiti Malaya [RU005-2021] [RK021-2019], Ministry of Higher Education Malaysia, HICOE Phase II [PRC-2014]
Uncontrolled Keywords: Antimony telluride; Tapered fiber; Saturable absorber; Double-clad Erbium-Ytterbium doped fiber; Laser; High power mode-locking pulses
Subjects: Q Science > QC Physics
Divisions: Faculty of Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 13 Sep 2023 02:24
Last Modified: 13 Sep 2023 02:24
URI: http://eprints.um.edu.my/id/eprint/41187

Actions (login required)

View Item View Item