1500-nm Q-switched fibre laser with carbon nanotubes

Muhammad, Farah Diana and Zulkifli, Mohd Zamani and Ahmad, Harith (2018) 1500-nm Q-switched fibre laser with carbon nanotubes. Quantum Electronics, 48 (10). pp. 941-944. ISSN 1063-7818, DOI https://doi.org/10.1070/QEL16769.

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Official URL: https://doi.org/10.1070/QEL16769


A Q-switched fibre laser operating at 1500 nm is proposed and demonstrated. The laser uses a saturable absorber (SA) based on carbon nanotubes (CNTs) to generate Q-switched pulses, while a 30-m-long depressed-cladding erbium-doped fibre (DC-EDF) provides the necessary gain in the desired wavelength region. The proposed laser has lasing and pulsed thresholds of 30 mW and 50 mW respectively, along with a maximum output power, pulse energy and peak power of 0.5 mW, 7.6 nJ and 2.2 mW. Additionally, the output of the system also has a maximum repetition rate of 59.4 kHz with the shortest pulse duration measured at 3.4 ms. The output pulses are smooth and uniform, with no indication of self mode-locking.

Item Type: Article
Uncontrolled Keywords: Carbon nanotubes; Fibre laser; Q-switching; S-band
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 09 May 2019 07:41
Last Modified: 09 May 2019 07:41
URI: http://eprints.um.edu.my/id/eprint/21203

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