Mode-locking in holmium doped fiber laser operating at 2.06 µm using manganese violet

Ahmad, Harith and Kamaruzzaman, K. and Samion, M. Z. and Ithnahaini, M. U. M. and Zulkifli, Mohd Zamani (2024) Mode-locking in holmium doped fiber laser operating at 2.06 µm using manganese violet. Optical and Quantum Electronics, 56 (7). ISSN 03068919

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Abstract

In this letter, we demonstrated mode-locking in a holmium-doped fiber laser (HDFL)using manganese violet (MV) drop-casted on an arc-shaped fiber as the saturable absorber (SA). The MV solution was prepared using the hydrothermal method. The HDFL was pumped with a compact in-house thulium-doped fiber laser operating at 1943 nm, delivering a continuous wave (CW) output of up to 2 W. Mode-locking was successfully generated at the pump power of 1.2 W by integrating the MV-SA into the ring cavity. The pulses obtained centered at the wavelength of 2067.4 nm had a repetition rate of 4.41 MHz and a pulse duration of 3.05 ps. The signal-to-noise ratio (SNR) measured was 42.1 dB. This work is the first to use a material-based SA on an arc-shaped fiber to generate mode-locking in an HDFL. It will spur further research on exploring other two-dimensional (2D) materials to generate short pulses at the longer wavelength near 2.1 µm.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Manganese Violet; Saturable absorber; mode-locked pulses; Holmium doped fiber laser.
Subjects:	Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science
Depositing User:	Dr M Z Zulkifli
Date Deposited:	07 Jan 2025 08:48
Last Modified:	07 Jan 2025 08:48
URI:	http://irep.iium.edu.my/id/eprint/117975

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