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Short pulse fiber laser based on pure metal saturable absorber / Ahmad Razif Muhammad

Pulsed fiber laser offers numerous applications in various fields such as high-precision material processing, bio-medicine, and range finder applications. This report focused on the development of pulse fiber laser that operates in three main different regions namely 1-, 1.55- and 2- micron region....

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Main Author: Ahmad Razif , Muhammad
Format: Thesis
Published: 2019
Subjects:
T Technology (General)
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://studentsrepo.um.edu.my/10519/2/Ahmad_Razif_Muhammad.pdf
http://studentsrepo.um.edu.my/10519/1/Ahmad_Razif_Muhammad_%E2%80%93_Thesis.pdf
http://studentsrepo.um.edu.my/10519/
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spelling my.um.stud.105192020-01-31T00:00:24Z Short pulse fiber laser based on pure metal saturable absorber / Ahmad Razif Muhammad Ahmad Razif , Muhammad T Technology (General) TK Electrical engineering. Electronics Nuclear engineering Pulsed fiber laser offers numerous applications in various fields such as high-precision material processing, bio-medicine, and range finder applications. This report focused on the development of pulse fiber laser that operates in three main different regions namely 1-, 1.55- and 2- micron region. The lasers utilized the all-fiber configuration in conjunction with Ytterbium doped fiber (YDF), Erbium doped fiber (EDF) and Thulium doped fiber (TDF) to produce an optimized laser at 1-,1.55- and 2 microns respectively. To realize the Q-switch pulse laser operation, metal based saturable absorber was fabricated and coated onto the surface of polyvinyl alcohol PVA thin film that act as the base material. These elements pick up a great interest amongst scientific researchers as they hold a unique optical property such as ultrafast response time, broad saturable absorption band and large third-order nonlinearity. Later, metal SA is sandwiched in between two fiber ferrule ends to form a device compatible saturable absorber for pulse generation. A Q-switched pulse was successfully demonstrated in all three regions with different output performance. These SAs were characterized in term of nonlinear absorption parameters. Together with field emission scanning electron microscopy (FESEM), energy dispersion X-ray (EDX), and linear absorption measurement. The output performance in terms of pulsed laser generation were analyzed and discussed. For instance, Q-switched fiber laser were successfully generated by all these materials namely, Ti-SA, Au-SA, and Cu-SA at all three regions. In addition, mode-locking behavior were realized in TDF (2-micron) region when Cu-SA applied in the cavity. These finding shows that metal material have a great potential for photonic applications. 2019-04 Thesis NonPeerReviewed application/pdf http://studentsrepo.um.edu.my/10519/2/Ahmad_Razif_Muhammad.pdf application/pdf http://studentsrepo.um.edu.my/10519/1/Ahmad_Razif_Muhammad_%E2%80%93_Thesis.pdf Ahmad Razif , Muhammad (2019) Short pulse fiber laser based on pure metal saturable absorber / Ahmad Razif Muhammad. PhD thesis, University of Malaya. http://studentsrepo.um.edu.my/10519/
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Student Repository
url_provider http://studentsrepo.um.edu.my/
topic T Technology (General)
TK Electrical engineering. Electronics Nuclear engineering
spellingShingle T Technology (General)
TK Electrical engineering. Electronics Nuclear engineering
Ahmad Razif , Muhammad
Short pulse fiber laser based on pure metal saturable absorber / Ahmad Razif Muhammad
description Pulsed fiber laser offers numerous applications in various fields such as high-precision material processing, bio-medicine, and range finder applications. This report focused on the development of pulse fiber laser that operates in three main different regions namely 1-, 1.55- and 2- micron region. The lasers utilized the all-fiber configuration in conjunction with Ytterbium doped fiber (YDF), Erbium doped fiber (EDF) and Thulium doped fiber (TDF) to produce an optimized laser at 1-,1.55- and 2 microns respectively. To realize the Q-switch pulse laser operation, metal based saturable absorber was fabricated and coated onto the surface of polyvinyl alcohol PVA thin film that act as the base material. These elements pick up a great interest amongst scientific researchers as they hold a unique optical property such as ultrafast response time, broad saturable absorption band and large third-order nonlinearity. Later, metal SA is sandwiched in between two fiber ferrule ends to form a device compatible saturable absorber for pulse generation. A Q-switched pulse was successfully demonstrated in all three regions with different output performance. These SAs were characterized in term of nonlinear absorption parameters. Together with field emission scanning electron microscopy (FESEM), energy dispersion X-ray (EDX), and linear absorption measurement. The output performance in terms of pulsed laser generation were analyzed and discussed. For instance, Q-switched fiber laser were successfully generated by all these materials namely, Ti-SA, Au-SA, and Cu-SA at all three regions. In addition, mode-locking behavior were realized in TDF (2-micron) region when Cu-SA applied in the cavity. These finding shows that metal material have a great potential for photonic applications.
format Thesis
author Ahmad Razif , Muhammad
author_facet Ahmad Razif , Muhammad
author_sort Ahmad Razif , Muhammad
title Short pulse fiber laser based on pure metal saturable absorber / Ahmad Razif Muhammad
title_short Short pulse fiber laser based on pure metal saturable absorber / Ahmad Razif Muhammad
title_full Short pulse fiber laser based on pure metal saturable absorber / Ahmad Razif Muhammad
title_fullStr Short pulse fiber laser based on pure metal saturable absorber / Ahmad Razif Muhammad
title_full_unstemmed Short pulse fiber laser based on pure metal saturable absorber / Ahmad Razif Muhammad
title_sort short pulse fiber laser based on pure metal saturable absorber / ahmad razif muhammad
publishDate 2019
url http://studentsrepo.um.edu.my/10519/2/Ahmad_Razif_Muhammad.pdf
http://studentsrepo.um.edu.my/10519/1/Ahmad_Razif_Muhammad_%E2%80%93_Thesis.pdf
http://studentsrepo.um.edu.my/10519/
_version_ 1738506377434759168
score 13.211869

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