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Low threshold Q-switched fiber laser incorporating titanium dioxide saturable absorber from waste material


Citation

Mohd Yusoff, Norita and Abdullah, C. A. C. and Abdul Hadi, M. A. W. and Ng, E. K. and Lee, H. K. and Zainol Abidin, Nadiah Husseini and Rosli, N. S. and Mahdi, Mohd Adzir (2020) Low threshold Q-switched fiber laser incorporating titanium dioxide saturable absorber from waste material. Optik - International Journal for Light and Electron Optics, 218. art. no. 164998. ISSN 0030-4026

Abstract

We experimentally demonstrate a passively Q-switched erbium-doped fiber laser incorporating microfiber-based titanium dioxide (TiO2) polymer composite saturable absorber. The anatase TiO2 is derived from natural ilmenite waste via alkaline fusion method. The TiO2 polymer composite is prepared using solvent exchange method and deposited onto tapered microfiber via dip coating technique. The passive Q-switching at 1558.3 nm with low threshold pump power of 16.4 mW, average output power of 1.0 mW and pulse energy of 47.6 nJ are realized. The shortest pulse width of 7 μs with 22.56 kHz repetition rate is recorded. This work opens up a new window for the generation of microsecond pulses using waste material.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Faculty of Science
Institute of Advanced Technology
DOI Number: https://doi.org/10.1016/j.ijleo.2020.164998
Publisher: Elsevier
Keywords: Titanium dioxide; Saturable absorber; Q-switched fiber laser; Ilmenite waste
Depositing User: Mohamad Jefri Mohamed Fauzi
Date Deposited: 07 Oct 2021 19:57
Last Modified: 07 Oct 2021 19:57
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.ijleo.2020.164998
URI: http://psasir.upm.edu.my/id/eprint/86602
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