Switchable single-double frequency multi-wavelength Brillouin Raman fiber laser based on micro-air cavity misalignment
This study experimentally demonstrates a switchable single-double frequency spacing multi-wavelength Bril�louin Raman fiber laser (MW-BRFL). The switching functionality was assisted by a micro air cavity (MAC) that was constructed by lateral misalignment of two cleaved fiber facets. Experimental r...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/6888/ http://eprints.uthm.edu.my/6888/1/J13906_2a350eebbd4db1fd4d21daa7df74e995.pdf |
| _version_ | 1848888940059164672 |
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| author | Al-Alimi, A. W. Khaleel, W. A. Sadeq, S. A. Cholan, N. A. Al-Mansoori, M. H. M. Ahmed, M. H. Mahdi, M.A. |
| author_facet | Al-Alimi, A. W. Khaleel, W. A. Sadeq, S. A. Cholan, N. A. Al-Mansoori, M. H. M. Ahmed, M. H. Mahdi, M.A. |
| author_sort | Al-Alimi, A. W. |
| building | UTHM Institutional Repository |
| collection | Online Access |
| description | This study experimentally demonstrates a switchable single-double frequency spacing multi-wavelength Bril�louin Raman fiber laser (MW-BRFL). The switching functionality was assisted by a micro air cavity (MAC) that
was constructed by lateral misalignment of two cleaved fiber facets. Experimental results indicated that the
frequency spacing of the generated channels could be switched via adjusting the MAC lateral misalignment. The
laser performance was evaluated by fixing the peak power flatness to 1.5 dB. For Raman pump power of 800 mW,
as many as 503 channels (39.72 nm bandwidth) with single frequency spacing of 0.079 nm were obtained when
the lateral misalignment was set at 0 µm. On the other hand, with MAC misalignment of 25 µm, the laser pro�duced 235 channels (37.03 nm bandwidth) with double frequency spacing of 0.158 nm. The peak power
discrepancy between the odd and even channels was 20 dB, indicating high suppression of double-frequency
spacing laser. In comparison to other switchable MW-BRFLs, this proposed configuration exhibited significant
improvements with respect to channel bandwidth, flatness and suppression. |
| first_indexed | 2025-11-15T20:18:15Z |
| format | Article |
| id | uthm-6888 |
| institution | Universiti Tun Hussein Onn Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:18:15Z |
| publishDate | 2022 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uthm-68882022-04-07T02:31:09Z http://eprints.uthm.edu.my/6888/ Switchable single-double frequency multi-wavelength Brillouin Raman fiber laser based on micro-air cavity misalignment Al-Alimi, A. W. Khaleel, W. A. Sadeq, S. A. Cholan, N. A. Al-Mansoori, M. H. M. Ahmed, M. H. Mahdi, M.A. TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television This study experimentally demonstrates a switchable single-double frequency spacing multi-wavelength Bril�louin Raman fiber laser (MW-BRFL). The switching functionality was assisted by a micro air cavity (MAC) that was constructed by lateral misalignment of two cleaved fiber facets. Experimental results indicated that the frequency spacing of the generated channels could be switched via adjusting the MAC lateral misalignment. The laser performance was evaluated by fixing the peak power flatness to 1.5 dB. For Raman pump power of 800 mW, as many as 503 channels (39.72 nm bandwidth) with single frequency spacing of 0.079 nm were obtained when the lateral misalignment was set at 0 µm. On the other hand, with MAC misalignment of 25 µm, the laser pro�duced 235 channels (37.03 nm bandwidth) with double frequency spacing of 0.158 nm. The peak power discrepancy between the odd and even channels was 20 dB, indicating high suppression of double-frequency spacing laser. In comparison to other switchable MW-BRFLs, this proposed configuration exhibited significant improvements with respect to channel bandwidth, flatness and suppression. Elsevier 2022 Article PeerReviewed text en http://eprints.uthm.edu.my/6888/1/J13906_2a350eebbd4db1fd4d21daa7df74e995.pdf Al-Alimi, A. W. and Khaleel, W. A. and Sadeq, S. A. and Cholan, N. A. and Al-Mansoori, M. H. and M. Ahmed, M. H. and Mahdi, M.A. (2022) Switchable single-double frequency multi-wavelength Brillouin Raman fiber laser based on micro-air cavity misalignment. Optics and Laser Technology, 146. pp. 1-10. ISSN 0030-3992 https://doi.org/10.1016/j.optlastec.2021.107464 |
| spellingShingle | TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television Al-Alimi, A. W. Khaleel, W. A. Sadeq, S. A. Cholan, N. A. Al-Mansoori, M. H. M. Ahmed, M. H. Mahdi, M.A. Switchable single-double frequency multi-wavelength Brillouin Raman fiber laser based on micro-air cavity misalignment |
| title | Switchable single-double frequency multi-wavelength Brillouin Raman
fiber laser based on micro-air cavity misalignment |
| title_full | Switchable single-double frequency multi-wavelength Brillouin Raman
fiber laser based on micro-air cavity misalignment |
| title_fullStr | Switchable single-double frequency multi-wavelength Brillouin Raman
fiber laser based on micro-air cavity misalignment |
| title_full_unstemmed | Switchable single-double frequency multi-wavelength Brillouin Raman
fiber laser based on micro-air cavity misalignment |
| title_short | Switchable single-double frequency multi-wavelength Brillouin Raman
fiber laser based on micro-air cavity misalignment |
| title_sort | switchable single-double frequency multi-wavelength brillouin raman
fiber laser based on micro-air cavity misalignment |
| topic | TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television |
| url | http://eprints.uthm.edu.my/6888/ http://eprints.uthm.edu.my/6888/ http://eprints.uthm.edu.my/6888/1/J13906_2a350eebbd4db1fd4d21daa7df74e995.pdf |