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Performance of graphene nanopowder-polyvinyl alcohol in optical pulse generation at 1.5 micron region

This paper explains the performance of a graphene nanopowder (GNP) based saturable absorber (SA) at the 1.5-micron region which is prepared by dissolution in polyvinyl alcohol (PVA) polymer. Two different GNP flake thicknesses (AO2-8 nm and AO4-60 nm) are tested. By applying a solution casting metho...

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Main Authors: Hussain, Nabihah, Salim, Mohd. Rashidi, Azmi, Asrul Izam, Mohd. Noor, Muhammad Yusof, Abdullah, Ahmad Sharmi, Ahmad, Fauzan, Mohd. Haniff, Ibrahim
Format: Article
Language:English
Published: Photonics Society of Poland 2021
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.utm.my/id/eprint/94209/1/NabihahHussain2021_PerformanceofGrapheneNanopowderPolyvinyl.pdf
http://eprints.utm.my/id/eprint/94209/
http://dx.doi.org/10.4302/plp.v13i3.1113
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spelling my.utm.942092022-03-31T15:24:49Z http://eprints.utm.my/id/eprint/94209/ Performance of graphene nanopowder-polyvinyl alcohol in optical pulse generation at 1.5 micron region Hussain, Nabihah Salim, Mohd. Rashidi Azmi, Asrul Izam Mohd. Noor, Muhammad Yusof Abdullah, Ahmad Sharmi Ahmad, Fauzan Mohd. Haniff, Ibrahim TK Electrical engineering. Electronics Nuclear engineering This paper explains the performance of a graphene nanopowder (GNP) based saturable absorber (SA) at the 1.5-micron region which is prepared by dissolution in polyvinyl alcohol (PVA) polymer. Two different GNP flake thicknesses (AO2-8 nm and AO4-60 nm) are tested. By applying a solution casting method, three weight ratios of GNP to PVA (12.04, 8.03 and 3.11 wt.%) have been prepared and fabricated as a thin composite film. To characterize the SA performance, a 4 mm2 area of thin GNP-PVA film is embedded in a 14 meter long ring cavity with a 3 meter Erbium doped fiber (EDF) as a gain medium. Our characterization results show that the thin GNP-PVA film acts as a Q-switcher which produces stable laser pulses for 12.04 wt.% with a maximum repetition rate of 39.22 kHz and a shortest pulse width of 11.79 µs. Meanwhile, unstable Q-switched pulses of 8.03 wt.% and 3.11 wt.% have been observed with recorded signal to noise ratio (SNR) of only 21 dB and 17 dB, respectively. The threshold pumping power for Q-switched lasing to emerge is recorded as low as 30 mW. Apparently, it shows that GNP concentration and flakes thickness in a fabricated SA composite plays a vital role in the performance of a generated Q-switch laser, particularly at the 1.5 µm region. Photonics Society of Poland 2021-10 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/94209/1/NabihahHussain2021_PerformanceofGrapheneNanopowderPolyvinyl.pdf Hussain, Nabihah and Salim, Mohd. Rashidi and Azmi, Asrul Izam and Mohd. Noor, Muhammad Yusof and Abdullah, Ahmad Sharmi and Ahmad, Fauzan and Mohd. Haniff, Ibrahim (2021) Performance of graphene nanopowder-polyvinyl alcohol in optical pulse generation at 1.5 micron region. Photonics Letters of Poland, 13 (3). pp. 55-57. ISSN 2080-2242 http://dx.doi.org/10.4302/plp.v13i3.1113 DOI:10.4302/plp.v13i3.1113
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Hussain, Nabihah
Salim, Mohd. Rashidi
Azmi, Asrul Izam
Mohd. Noor, Muhammad Yusof
Abdullah, Ahmad Sharmi
Ahmad, Fauzan
Mohd. Haniff, Ibrahim
Performance of graphene nanopowder-polyvinyl alcohol in optical pulse generation at 1.5 micron region
description This paper explains the performance of a graphene nanopowder (GNP) based saturable absorber (SA) at the 1.5-micron region which is prepared by dissolution in polyvinyl alcohol (PVA) polymer. Two different GNP flake thicknesses (AO2-8 nm and AO4-60 nm) are tested. By applying a solution casting method, three weight ratios of GNP to PVA (12.04, 8.03 and 3.11 wt.%) have been prepared and fabricated as a thin composite film. To characterize the SA performance, a 4 mm2 area of thin GNP-PVA film is embedded in a 14 meter long ring cavity with a 3 meter Erbium doped fiber (EDF) as a gain medium. Our characterization results show that the thin GNP-PVA film acts as a Q-switcher which produces stable laser pulses for 12.04 wt.% with a maximum repetition rate of 39.22 kHz and a shortest pulse width of 11.79 µs. Meanwhile, unstable Q-switched pulses of 8.03 wt.% and 3.11 wt.% have been observed with recorded signal to noise ratio (SNR) of only 21 dB and 17 dB, respectively. The threshold pumping power for Q-switched lasing to emerge is recorded as low as 30 mW. Apparently, it shows that GNP concentration and flakes thickness in a fabricated SA composite plays a vital role in the performance of a generated Q-switch laser, particularly at the 1.5 µm region.
format Article
author Hussain, Nabihah
Salim, Mohd. Rashidi
Azmi, Asrul Izam
Mohd. Noor, Muhammad Yusof
Abdullah, Ahmad Sharmi
Ahmad, Fauzan
Mohd. Haniff, Ibrahim
author_facet Hussain, Nabihah
Salim, Mohd. Rashidi
Azmi, Asrul Izam
Mohd. Noor, Muhammad Yusof
Abdullah, Ahmad Sharmi
Ahmad, Fauzan
Mohd. Haniff, Ibrahim
author_sort Hussain, Nabihah
title Performance of graphene nanopowder-polyvinyl alcohol in optical pulse generation at 1.5 micron region
title_short Performance of graphene nanopowder-polyvinyl alcohol in optical pulse generation at 1.5 micron region
title_full Performance of graphene nanopowder-polyvinyl alcohol in optical pulse generation at 1.5 micron region
title_fullStr Performance of graphene nanopowder-polyvinyl alcohol in optical pulse generation at 1.5 micron region
title_full_unstemmed Performance of graphene nanopowder-polyvinyl alcohol in optical pulse generation at 1.5 micron region
title_sort performance of graphene nanopowder-polyvinyl alcohol in optical pulse generation at 1.5 micron region
publisher Photonics Society of Poland
publishDate 2021
url http://eprints.utm.my/id/eprint/94209/1/NabihahHussain2021_PerformanceofGrapheneNanopowderPolyvinyl.pdf
http://eprints.utm.my/id/eprint/94209/
http://dx.doi.org/10.4302/plp.v13i3.1113
_version_ 1729703139640082432
score 13.211869

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