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Conductive graphene as passive saturable absorber with high instantaneous peak power and pulse energy in Q-switched regime


Citation

Zuikafly, Siti Nur Fatin and Khalifa, Ali and Ahmad, Fauzan and Shafie, Suhaidi and Harun, Sulaiman Wadi (2018) Conductive graphene as passive saturable absorber with high instantaneous peak power and pulse energy in Q-switched regime. Results in Physics, 9. 371 - 375. ISSN 2211-3797

Abstract

The Q-switched pulse regime is demonstrated by integrating conductive graphene as passive saturable absorber producing relatively high instantaneous peak power and pulse energy. The fabricated conductive graphene is investigated using Raman spectroscopy. The single wavelength Q-switching operates at 1558.28 nm at maximum input pump power of 151.47 mW. As the pump power is increased from threshold power of 51.6 mW to 151.47 mW, the pulse train repetition rate increases proportionally from 47.94 kHz to 67.8 kHz while the pulse width is reduced from 9.58 μs to 6.02 μs. The generated stable pulse produced maximum peak power and pulse energy of 32 mW and 206 nJ, respectively. The first beat node of the measured signal-to-noise ratio is about 62 dB indicating high pulse stability.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1016/j.rinp.2018.03.002
Publisher: Elsevier
Keywords: Conductive graphene; Passive saturable absorber; Q-switched regime
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 10 Feb 2020 00:46
Last Modified: 10 Feb 2020 00:46
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.rinp.2018.03.002
URI: http://psasir.upm.edu.my/id/eprint/72101
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