Effect of Rayleigh backscattering on the multiwavelength random fiber laser bandwidth
We investigated the effect of Rayleigh backscattering on the bandwidth of a multiwavelength random fiber laser (MWRFL). This MWRFL is based on an erbium-doped fiber amplifier (EDFA) as the gain medium and a Lyot filter as the wavelength-selective device. A high number and stable lasing line is gener...
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| Format: | Article |
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IOP Publishing Ltd
2023
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| _version_ | 1811132298560536576 |
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| author | David, Allen Paul Sulaiman, Abdul Hadi Abdullah, Fairuz Ismail, Aiman Jamaludin, Md. Zaini Md. Yusoff, Nelidya |
| author_facet | David, Allen Paul Sulaiman, Abdul Hadi Abdullah, Fairuz Ismail, Aiman Jamaludin, Md. Zaini Md. Yusoff, Nelidya |
| author_sort | David, Allen Paul |
| collection | ePrints |
| description | We investigated the effect of Rayleigh backscattering on the bandwidth of a multiwavelength random fiber laser (MWRFL). This MWRFL is based on an erbium-doped fiber amplifier (EDFA) as the gain medium and a Lyot filter as the wavelength-selective device. A high number and stable lasing line is generated with the assistance of a nonlinear polarization rotation effect induced by highly nonlinear fiber (HNLF) and optimized by a polarization controller. Longer single-mode fiber (SMF) produces wider multiwavelength bandwidth as compared to shorter SMF lengths, as 10 km, 3 km, and 0.1 km obtained 6.24 nm, 5.76 nm, and 2.75 nm wavelength bandwidth, respectively. When the SMF is removed from the setup, no Rayleigh backscattering is provided in the cavity, which led to a narrower multiwavelength bandwidth of 2.69 nm. Subsequently, the alteration of EDFA power, half-wave plate (HWP) angle, and quarter-wave plate (QWP) angles affected the degradation of multiwavelength performance. The best output spectrum is achieved at an EDFA power of 18 dBm, a HWP angle of 60°, and a QWP angle of 105°. The laser stability over a period of 120 min was excellent with a peak power deviation of 1.33 dB. |
| first_indexed | 2024-09-24T00:01:15Z |
| format | Article |
| id | utm.eprints-106246 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-09-24T00:01:15Z |
| publishDate | 2023 |
| publisher | IOP Publishing Ltd |
| record_format | dspace |
| spelling | utm.eprints-1062462024-06-20T02:47:07Z http://eprints.utm.my/106246/ Effect of Rayleigh backscattering on the multiwavelength random fiber laser bandwidth David, Allen Paul Sulaiman, Abdul Hadi Abdullah, Fairuz Ismail, Aiman Jamaludin, Md. Zaini Md. Yusoff, Nelidya TK Electrical engineering. Electronics Nuclear engineering We investigated the effect of Rayleigh backscattering on the bandwidth of a multiwavelength random fiber laser (MWRFL). This MWRFL is based on an erbium-doped fiber amplifier (EDFA) as the gain medium and a Lyot filter as the wavelength-selective device. A high number and stable lasing line is generated with the assistance of a nonlinear polarization rotation effect induced by highly nonlinear fiber (HNLF) and optimized by a polarization controller. Longer single-mode fiber (SMF) produces wider multiwavelength bandwidth as compared to shorter SMF lengths, as 10 km, 3 km, and 0.1 km obtained 6.24 nm, 5.76 nm, and 2.75 nm wavelength bandwidth, respectively. When the SMF is removed from the setup, no Rayleigh backscattering is provided in the cavity, which led to a narrower multiwavelength bandwidth of 2.69 nm. Subsequently, the alteration of EDFA power, half-wave plate (HWP) angle, and quarter-wave plate (QWP) angles affected the degradation of multiwavelength performance. The best output spectrum is achieved at an EDFA power of 18 dBm, a HWP angle of 60°, and a QWP angle of 105°. The laser stability over a period of 120 min was excellent with a peak power deviation of 1.33 dB. IOP Publishing Ltd 2023-08-22 Article PeerReviewed David, Allen Paul and Sulaiman, Abdul Hadi and Abdullah, Fairuz and Ismail, Aiman and Jamaludin, Md. Zaini and Md. Yusoff, Nelidya (2023) Effect of Rayleigh backscattering on the multiwavelength random fiber laser bandwidth. Physica Scripta, 98 (9). NA. ISSN 0031-8949 http://dx.doi.org/10.1088/1402-4896/acecbe DOI:10.1088/1402-4896/acecbe |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering David, Allen Paul Sulaiman, Abdul Hadi Abdullah, Fairuz Ismail, Aiman Jamaludin, Md. Zaini Md. Yusoff, Nelidya Effect of Rayleigh backscattering on the multiwavelength random fiber laser bandwidth |
| title | Effect of Rayleigh backscattering on the multiwavelength random fiber laser bandwidth |
| title_full | Effect of Rayleigh backscattering on the multiwavelength random fiber laser bandwidth |
| title_fullStr | Effect of Rayleigh backscattering on the multiwavelength random fiber laser bandwidth |
| title_full_unstemmed | Effect of Rayleigh backscattering on the multiwavelength random fiber laser bandwidth |
| title_short | Effect of Rayleigh backscattering on the multiwavelength random fiber laser bandwidth |
| title_sort | effect of rayleigh backscattering on the multiwavelength random fiber laser bandwidth |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
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