Multiwavelength fiber laser based on enhanced bidirectional SOA utilizing Lyot filter
We demonstrated a multiwavelength fiber laser (MWFL) based on two bidirectional semiconductor optical amplifiers (SOAs) and a Lyot filter. The structure is enhanced by placing two -SOAs in a bidirectional region to improve the lasing performance. This resulted in a higher extinction ratio (ER) of 36...
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Elsevier GmbH
2025
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| author | Lah A.A.A. Sulaiman A.H. Abdullah F. Yusoff N.M. |
| author2 | 57202646424 |
| author_facet | 57202646424 Lah A.A.A. Sulaiman A.H. Abdullah F. Yusoff N.M. |
| author_sort | Lah A.A.A. |
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| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | We demonstrated a multiwavelength fiber laser (MWFL) based on two bidirectional semiconductor optical amplifiers (SOAs) and a Lyot filter. The structure is enhanced by placing two -SOAs in a bidirectional region to improve the lasing performance. This resulted in a higher extinction ratio (ER) of 36.05 dB, as earlier work only achieved a maximum extinction ratio (ER) of 17 dB utilizing an SOA based on bidirectional configuration. The performance of the MWFL in unidirectional and bidirectional configurations, as well as different parameter settings of SOA current and polarization controller (PC) angle is examined. Using a unidirectional configuration decreases the amplification on one side of the SOA, hence reducing the wavelength bandwidth by 2 nm, which is equivalent to six lasing lines. According to the wavelength bandwidth of 13 nm and channel spacing of 0.22 nm, the optimal performance of MWFL employing bidirectional configuration is 56 lasing lines within 3 dB bandwidth. Consequently, we decreased each SOA's operating current, resulting in lower lasing lines. Changing the PC angle modifies the polarization degree and state, hence impacting multiwavelength flatness and wavelength bandwidth performance. When the polarizer is removed, the ER and lasing lines are decreased to 42 dB and 9 nm, respectively. The MWFL has high stability with a peak power fluctuation of 0.25 dB in 120 min. ? 2024 Elsevier GmbH |
| format | Article |
| id | my.uniten.dspace-36718 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2025 |
| publisher | Elsevier GmbH |
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| spelling | my.uniten.dspace-367182025-03-03T15:44:09Z Multiwavelength fiber laser based on enhanced bidirectional SOA utilizing Lyot filter Lah A.A.A. Sulaiman A.H. Abdullah F. Yusoff N.M. 57202646424 36810678100 56613644500 56036869700 Bandwidth Fiber amplifiers Fiber lasers Light extinction Optical switches Polarization Bidirectional semiconductor optical amplifiers High extinction ratios Intensity-dependent Intensity-dependent loss Laser-based Lasing lines Lasing performance Lyot filters Multi wavelength fiber laser Polarization controllers Semiconductor optical amplifiers We demonstrated a multiwavelength fiber laser (MWFL) based on two bidirectional semiconductor optical amplifiers (SOAs) and a Lyot filter. The structure is enhanced by placing two -SOAs in a bidirectional region to improve the lasing performance. This resulted in a higher extinction ratio (ER) of 36.05 dB, as earlier work only achieved a maximum extinction ratio (ER) of 17 dB utilizing an SOA based on bidirectional configuration. The performance of the MWFL in unidirectional and bidirectional configurations, as well as different parameter settings of SOA current and polarization controller (PC) angle is examined. Using a unidirectional configuration decreases the amplification on one side of the SOA, hence reducing the wavelength bandwidth by 2 nm, which is equivalent to six lasing lines. According to the wavelength bandwidth of 13 nm and channel spacing of 0.22 nm, the optimal performance of MWFL employing bidirectional configuration is 56 lasing lines within 3 dB bandwidth. Consequently, we decreased each SOA's operating current, resulting in lower lasing lines. Changing the PC angle modifies the polarization degree and state, hence impacting multiwavelength flatness and wavelength bandwidth performance. When the polarizer is removed, the ER and lasing lines are decreased to 42 dB and 9 nm, respectively. The MWFL has high stability with a peak power fluctuation of 0.25 dB in 120 min. ? 2024 Elsevier GmbH Final 2025-03-03T07:44:09Z 2025-03-03T07:44:09Z 2024 Article 10.1016/j.ijleo.2024.171679 2-s2.0-85185533149 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185533149&doi=10.1016%2fj.ijleo.2024.171679&partnerID=40&md5=b26147d5e3eba99aa59c63c3475ae505 https://irepository.uniten.edu.my/handle/123456789/36718 301 171679 Elsevier GmbH Scopus |
| spellingShingle | Bandwidth Fiber amplifiers Fiber lasers Light extinction Optical switches Polarization Bidirectional semiconductor optical amplifiers High extinction ratios Intensity-dependent Intensity-dependent loss Laser-based Lasing lines Lasing performance Lyot filters Multi wavelength fiber laser Polarization controllers Semiconductor optical amplifiers Lah A.A.A. Sulaiman A.H. Abdullah F. Yusoff N.M. Multiwavelength fiber laser based on enhanced bidirectional SOA utilizing Lyot filter |
| title | Multiwavelength fiber laser based on enhanced bidirectional SOA utilizing Lyot filter |
| title_full | Multiwavelength fiber laser based on enhanced bidirectional SOA utilizing Lyot filter |
| title_fullStr | Multiwavelength fiber laser based on enhanced bidirectional SOA utilizing Lyot filter |
| title_full_unstemmed | Multiwavelength fiber laser based on enhanced bidirectional SOA utilizing Lyot filter |
| title_short | Multiwavelength fiber laser based on enhanced bidirectional SOA utilizing Lyot filter |
| title_sort | multiwavelength fiber laser based on enhanced bidirectional soa utilizing lyot filter |
| topic | Bandwidth Fiber amplifiers Fiber lasers Light extinction Optical switches Polarization Bidirectional semiconductor optical amplifiers High extinction ratios Intensity-dependent Intensity-dependent loss Laser-based Lasing lines Lasing performance Lyot filters Multi wavelength fiber laser Polarization controllers Semiconductor optical amplifiers |
| url_provider | http://dspace.uniten.edu.my/ |