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Brillouin-Raman fiber laser with switchable wavelength spacing based on Brillouin pump distribution

A switchable multi-wavelength Brillouin-Raman fiber laser (MW-BRFL) is presented in this work. The MW-BRFL consists of a full-open linear cavity in which dispersion compensating fiber is employed as the gain medium for Brillouin and Raman amplification. The switching operation for single- and double...

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Main Authors:	Al-Alimi, Abdulmoghni Ali Wazea, Cholan, Noran Azizan, Salam, Sameer, Mustapha Kamil, Yasmin, Mohamed Ahmed, Mahmoud Hazzaa, Mahdi, Mohd Adzir
Format:	Article
Published:	Elsevier 2021
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spelling	oai:psasir.upm.edu.my:96264 http://psasir.upm.edu.my/id/eprint/96264/ Brillouin-Raman fiber laser with switchable wavelength spacing based on Brillouin pump distribution Al-Alimi, Abdulmoghni Ali Wazea Cholan, Noran Azizan Salam, Sameer Mustapha Kamil, Yasmin Mohamed Ahmed, Mahmoud Hazzaa Mahdi, Mohd Adzir A switchable multi-wavelength Brillouin-Raman fiber laser (MW-BRFL) is presented in this work. The MW-BRFL consists of a full-open linear cavity in which dispersion compensating fiber is employed as the gain medium for Brillouin and Raman amplification. The switching operation for single- and double-wavelength spacing MW-BRFL can be implemented by controlling Brillouin pump (BP) power distribution and direction that enters the laser cavity via two fiber-entry points. This is achievable by optimizing the splitting ratio of an optical coupler and the initial BP power. For the proposed laser setup, a 30/70 optical coupler was found to be the optimum. By setting the initial BP power at −3.0 dBm, 246 laser lines with 20-GHz frequency spacing were observed. The transformation to 10-GHz frequency spacing was attained by increasing the BP power to 11.8 dBm that resulted in 483 laser lines. All the counted laser lines had 3 dB peak power variation and were spread across a 38 nm bandwidth. In a nutshell, the proposed MW-BRFL is promising with respect to its performance, simplicity and flexibility. Elsevier 2021 Article PeerReviewed Al-Alimi, Abdulmoghni Ali Wazea and Cholan, Noran Azizan and Salam, Sameer and Mustapha Kamil, Yasmin and Mohamed Ahmed, Mahmoud Hazzaa and Mahdi, Mohd Adzir (2021) Brillouin-Raman fiber laser with switchable wavelength spacing based on Brillouin pump distribution. Results in Physics, 25. art. no. 104149. pp. 1-8. ISSN 2211-3797 https://www.sciencedirect.com/science/article/pii/S2211379721003016 10.1016/j.rinp.2021.104149
institution	UPM IR
collection	UPM IR
description	A switchable multi-wavelength Brillouin-Raman fiber laser (MW-BRFL) is presented in this work. The MW-BRFL consists of a full-open linear cavity in which dispersion compensating fiber is employed as the gain medium for Brillouin and Raman amplification. The switching operation for single- and double-wavelength spacing MW-BRFL can be implemented by controlling Brillouin pump (BP) power distribution and direction that enters the laser cavity via two fiber-entry points. This is achievable by optimizing the splitting ratio of an optical coupler and the initial BP power. For the proposed laser setup, a 30/70 optical coupler was found to be the optimum. By setting the initial BP power at −3.0 dBm, 246 laser lines with 20-GHz frequency spacing were observed. The transformation to 10-GHz frequency spacing was attained by increasing the BP power to 11.8 dBm that resulted in 483 laser lines. All the counted laser lines had 3 dB peak power variation and were spread across a 38 nm bandwidth. In a nutshell, the proposed MW-BRFL is promising with respect to its performance, simplicity and flexibility.
format	Article
author	Al-Alimi, Abdulmoghni Ali Wazea Cholan, Noran Azizan Salam, Sameer Mustapha Kamil, Yasmin Mohamed Ahmed, Mahmoud Hazzaa Mahdi, Mohd Adzir
spellingShingle	Al-Alimi, Abdulmoghni Ali Wazea Cholan, Noran Azizan Salam, Sameer Mustapha Kamil, Yasmin Mohamed Ahmed, Mahmoud Hazzaa Mahdi, Mohd Adzir Brillouin-Raman fiber laser with switchable wavelength spacing based on Brillouin pump distribution
author_facet	Al-Alimi, Abdulmoghni Ali Wazea Cholan, Noran Azizan Salam, Sameer Mustapha Kamil, Yasmin Mohamed Ahmed, Mahmoud Hazzaa Mahdi, Mohd Adzir
author_sort	Al-Alimi, Abdulmoghni Ali Wazea
title	Brillouin-Raman fiber laser with switchable wavelength spacing based on Brillouin pump distribution
title_short	Brillouin-Raman fiber laser with switchable wavelength spacing based on Brillouin pump distribution
title_full	Brillouin-Raman fiber laser with switchable wavelength spacing based on Brillouin pump distribution
title_fullStr	Brillouin-Raman fiber laser with switchable wavelength spacing based on Brillouin pump distribution
title_full_unstemmed	Brillouin-Raman fiber laser with switchable wavelength spacing based on Brillouin pump distribution
title_sort	brillouin-raman fiber laser with switchable wavelength spacing based on brillouin pump distribution
publisher	Elsevier
publishDate	2021
_version_	1819300838463504384
score	13.4562235

Brillouin-Raman fiber laser with switchable wavelength spacing based on Brillouin pump distribution

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