Multi-wavelength brillouin fiber laser by utilizing fiber bragg grating

A ring cavity multi-wavelength Brillouin fiber laser by utilizing fiber Bragg grating is evolved to increase the transmission or data rate in the optical fiber communication especially in dense wavelength division multiplexing system. The combination of stimulated Brillouin scattering effect and fib...

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Format:	Thesis
Language:	English
Subjects:	Optical fiber communication Brillouin scattering Bragg gratings
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78348/1/Page%201-%2024.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78348/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78348/3/Amira%20Zakiah.pdf
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spelling	my-unimap-783482023-04-17T04:23:29Z Multi-wavelength brillouin fiber laser by utilizing fiber bragg grating Nor Azura Malini, Ahmad Hambali, Dr. A ring cavity multi-wavelength Brillouin fiber laser by utilizing fiber Bragg grating is evolved to increase the transmission or data rate in the optical fiber communication especially in dense wavelength division multiplexing system. The combination of stimulated Brillouin scattering effect and fiber Bragg grating’s reflectivity enhances the multi-wavelength generation in order to transmit a lot of information at the same time. A ring cavity configuration has been experimental demonstrated with different single mode fiber lengths in which act as a Brillouin gain medium in stimulated Brillouin scattering effect. The amplified Brillouin pump power of 8 dBm to 18 dBm with a step increment of 1 dBm was applied in the laser system. Five different single mode fiber lengths of 8 km, 9 km, 10 km, 11 km and 12 km with nine output coupling ratios of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% and 90% were optimized to generate more output signals. Overall, the results showed that the investigation of Brillouin threshold power for first Brillouin Stokes signals was critically depends on the selective single mode fiber lengths and output coupling ratios. The lowest Brillouin threshold power of 8 dBm was achieved when 10%, 20%, 30% and 40% of the output coupling ratio at 10 km of single mode fiber was applied into the ring cavity while the highest Brillouin threshold power of 12 dBm was recorded by using 8 km of single mode fiber with 60%, 70%, 80% and 90% of output coupling ratios. Besides that, up to maximum 38 generated Brillouin Stokes signals with 16.00 dB of average optical signal to noise ratio value were recorded at 1550 nm of Brillouin pump wavelength when high amplified Brillouin pump power of 18 dBm was injected into the ring cavity. An optimum output coupling ratio of 90% and 10 km of single mode fiber were utilized in producing the multi-wavelength generation. The wavelength selectivity based on the Fiber Bragg Grating’s properties constrains the tuning range ability of this laser system. The multi-wavelength generation only occurred within 1544 nm to 1556 nm of Brillouin Pump wavelength according to the 3 dB bandwidth of 5 nm of the fiber Bragg grating. In short, the better performance of multi-wavelength Brillouin Fiber Laser by utilizing fiber Bragg grating was successfully demonstrated whereby the most multi-wavelength generation produced at 10 km of the effective Brillouin gain medium. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78348 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78348/4/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78348/1/Page%201-%2024.pdf 7b39317238dab4ea05ff89377ed6edc7 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78348/2/Full%20text.pdf b5652948bc9027899aea5051d1f4a122 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78348/3/Amira%20Zakiah.pdf 487f4ce186f5b898ba5b60d6fa5eddd0 Universiti Malaysia Perlis (UniMAP) Optical fiber communication Brillouin scattering Bragg gratings School of Microelectronic Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
advisor	Nor Azura Malini, Ahmad Hambali, Dr.
topic	Optical fiber communication Brillouin scattering Bragg gratings
spellingShingle	Optical fiber communication Brillouin scattering Bragg gratings Multi-wavelength brillouin fiber laser by utilizing fiber bragg grating
description	A ring cavity multi-wavelength Brillouin fiber laser by utilizing fiber Bragg grating is evolved to increase the transmission or data rate in the optical fiber communication especially in dense wavelength division multiplexing system. The combination of stimulated Brillouin scattering effect and fiber Bragg grating’s reflectivity enhances the multi-wavelength generation in order to transmit a lot of information at the same time. A ring cavity configuration has been experimental demonstrated with different single mode fiber lengths in which act as a Brillouin gain medium in stimulated Brillouin scattering effect. The amplified Brillouin pump power of 8 dBm to 18 dBm with a step increment of 1 dBm was applied in the laser system. Five different single mode fiber lengths of 8 km, 9 km, 10 km, 11 km and 12 km with nine output coupling ratios of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% and 90% were optimized to generate more output signals. Overall, the results showed that the investigation of Brillouin threshold power for first Brillouin Stokes signals was critically depends on the selective single mode fiber lengths and output coupling ratios. The lowest Brillouin threshold power of 8 dBm was achieved when 10%, 20%, 30% and 40% of the output coupling ratio at 10 km of single mode fiber was applied into the ring cavity while the highest Brillouin threshold power of 12 dBm was recorded by using 8 km of single mode fiber with 60%, 70%, 80% and 90% of output coupling ratios. Besides that, up to maximum 38 generated Brillouin Stokes signals with 16.00 dB of average optical signal to noise ratio value were recorded at 1550 nm of Brillouin pump wavelength when high amplified Brillouin pump power of 18 dBm was injected into the ring cavity. An optimum output coupling ratio of 90% and 10 km of single mode fiber were utilized in producing the multi-wavelength generation. The wavelength selectivity based on the Fiber Bragg Grating’s properties constrains the tuning range ability of this laser system. The multi-wavelength generation only occurred within 1544 nm to 1556 nm of Brillouin Pump wavelength according to the 3 dB bandwidth of 5 nm of the fiber Bragg grating. In short, the better performance of multi-wavelength Brillouin Fiber Laser by utilizing fiber Bragg grating was successfully demonstrated whereby the most multi-wavelength generation produced at 10 km of the effective Brillouin gain medium.
format	Thesis
title	Multi-wavelength brillouin fiber laser by utilizing fiber bragg grating
title_short	Multi-wavelength brillouin fiber laser by utilizing fiber bragg grating
title_full	Multi-wavelength brillouin fiber laser by utilizing fiber bragg grating
title_fullStr	Multi-wavelength brillouin fiber laser by utilizing fiber bragg grating
title_full_unstemmed	Multi-wavelength brillouin fiber laser by utilizing fiber bragg grating
title_sort	multi-wavelength brillouin fiber laser by utilizing fiber bragg grating
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Microelectronic Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78348/1/Page%201-%2024.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78348/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/78348/3/Amira%20Zakiah.pdf
_version_	1776104284215050240

Multi-wavelength brillouin fiber laser by utilizing fiber bragg grating

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