Staff View: Investigation on factors influencing flatness of a bidirectional SOA-based multiwavelength fiber laser

Investigation on factors influencing flatness of a bidirectional SOA-based multiwavelength fiber laser

We investigate the flatness of the output spectrum in two multiwavelength fiber lasers (MWFLs) using two different configurations, unidirectional and bidirectional semiconductor optical amplifiers (SOAs). The most significant finding is the large variance in flatness values between the configuration...

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Main Authors:	Sulaiman, Abdul Hadi, Md. Yusoff, Nelidya, Abdul Kadir, Muhammad Zamzuri, Abdullah, Fairuz, Cholan, Noran Azizan, Mustapha Kamil, Yasmin, Mahdi, Mohd. Adzir
Format:	Article
Published:	Elsevier B.V. 2021
Subjects:	T Technology (General)
Online Access:	http://eprints.utm.my/id/eprint/94744/ http://dx.doi.org/10.1016/j.infrared.2020.103593
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spelling	my.utm.947442022-03-31T15:53:22Z http://eprints.utm.my/id/eprint/94744/ Investigation on factors influencing flatness of a bidirectional SOA-based multiwavelength fiber laser Sulaiman, Abdul Hadi Md. Yusoff, Nelidya Abdul Kadir, Muhammad Zamzuri Abdullah, Fairuz Cholan, Noran Azizan Mustapha Kamil, Yasmin Mahdi, Mohd. Adzir T Technology (General) We investigate the flatness of the output spectrum in two multiwavelength fiber lasers (MWFLs) using two different configurations, unidirectional and bidirectional semiconductor optical amplifiers (SOAs). The most significant finding is the large variance in flatness values between the configurations where the unidirectional SOA is at 6.54 dB and the bidirectional SOA is at 1.45 dB. This is due to the lower total power and incomplete counter propagation in the cavity. The best SOA-based MWFL using a bidirectional SOA can generate 215 spectral lines within 5 dB uniformity. The multiwavelength spectrum is flat with a broad range, about 20 nm, owing to the property of spectral reshaping by the bidirectional amplification process in the SOA as well as complete counter propagation. Apart from the bidirectional SOA, the intensity-dependent loss (IDL) mechanism also contributes to the multiwavelength spectrum flatness. The adjustment of the half-wave plate (HWP) in the polarization controller (PC) affects the wavelength range and optical signal-to-noise ratio (OSNR). The MWFL shows excellent power stability, with the highest power deviation being only 0.95 dB. Elsevier B.V. 2021 Article PeerReviewed Sulaiman, Abdul Hadi and Md. Yusoff, Nelidya and Abdul Kadir, Muhammad Zamzuri and Abdullah, Fairuz and Cholan, Noran Azizan and Mustapha Kamil, Yasmin and Mahdi, Mohd. Adzir (2021) Investigation on factors influencing flatness of a bidirectional SOA-based multiwavelength fiber laser. Infrared Physics and Technology, 112 . p. 103593. ISSN 1350-4495 http://dx.doi.org/10.1016/j.infrared.2020.103593
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/
topic	T Technology (General)
spellingShingle	T Technology (General) Sulaiman, Abdul Hadi Md. Yusoff, Nelidya Abdul Kadir, Muhammad Zamzuri Abdullah, Fairuz Cholan, Noran Azizan Mustapha Kamil, Yasmin Mahdi, Mohd. Adzir Investigation on factors influencing flatness of a bidirectional SOA-based multiwavelength fiber laser
description	We investigate the flatness of the output spectrum in two multiwavelength fiber lasers (MWFLs) using two different configurations, unidirectional and bidirectional semiconductor optical amplifiers (SOAs). The most significant finding is the large variance in flatness values between the configurations where the unidirectional SOA is at 6.54 dB and the bidirectional SOA is at 1.45 dB. This is due to the lower total power and incomplete counter propagation in the cavity. The best SOA-based MWFL using a bidirectional SOA can generate 215 spectral lines within 5 dB uniformity. The multiwavelength spectrum is flat with a broad range, about 20 nm, owing to the property of spectral reshaping by the bidirectional amplification process in the SOA as well as complete counter propagation. Apart from the bidirectional SOA, the intensity-dependent loss (IDL) mechanism also contributes to the multiwavelength spectrum flatness. The adjustment of the half-wave plate (HWP) in the polarization controller (PC) affects the wavelength range and optical signal-to-noise ratio (OSNR). The MWFL shows excellent power stability, with the highest power deviation being only 0.95 dB.
format	Article
author	Sulaiman, Abdul Hadi Md. Yusoff, Nelidya Abdul Kadir, Muhammad Zamzuri Abdullah, Fairuz Cholan, Noran Azizan Mustapha Kamil, Yasmin Mahdi, Mohd. Adzir
author_facet	Sulaiman, Abdul Hadi Md. Yusoff, Nelidya Abdul Kadir, Muhammad Zamzuri Abdullah, Fairuz Cholan, Noran Azizan Mustapha Kamil, Yasmin Mahdi, Mohd. Adzir
author_sort	Sulaiman, Abdul Hadi
title	Investigation on factors influencing flatness of a bidirectional SOA-based multiwavelength fiber laser
title_short	Investigation on factors influencing flatness of a bidirectional SOA-based multiwavelength fiber laser
title_full	Investigation on factors influencing flatness of a bidirectional SOA-based multiwavelength fiber laser
title_fullStr	Investigation on factors influencing flatness of a bidirectional SOA-based multiwavelength fiber laser
title_full_unstemmed	Investigation on factors influencing flatness of a bidirectional SOA-based multiwavelength fiber laser
title_sort	investigation on factors influencing flatness of a bidirectional soa-based multiwavelength fiber laser
publisher	Elsevier B.V.
publishDate	2021
url	http://eprints.utm.my/id/eprint/94744/ http://dx.doi.org/10.1016/j.infrared.2020.103593
_version_	1729703215327346688
score	13.211869

Investigation on factors influencing flatness of a bidirectional SOA-based multiwavelength fiber laser

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