Passive Q-switched fiber laser in C-and S band region using silver nanoparticles as a saturable absorber / Nur E’Zzati Ruslan
This research aims to investigate the feasibility of silver-nanoparticles as a saturable absorber (SA) to passively generate Q-switched pulses in C- and S- bands. Previously, passive Q-switched lasers is generated by employing nonlinear polarization rotation (NPR) and semiconductor saturable absorbe...
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| Format: | Thesis |
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2019
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| Online Access: | http://studentsrepo.um.edu.my/12494/ http://studentsrepo.um.edu.my/12494/1/Nur_E%E2%80%99Zzati.pdf |
| _version_ | 1848774668856590336 |
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| author | Nur E’Zzati , Ruslan |
| author_facet | Nur E’Zzati , Ruslan |
| author_sort | Nur E’Zzati , Ruslan |
| building | UM Research Repository |
| collection | Online Access |
| description | This research aims to investigate the feasibility of silver-nanoparticles as a saturable absorber (SA) to passively generate Q-switched pulses in C- and S- bands. Previously, passive Q-switched lasers is generated by employing nonlinear polarization rotation (NPR) and semiconductor saturable absorber mirrors (SESAMs). Recently, passive Q switched lasers can also be generated using 2D materials such as single-walled carbon nanotubes (SWCNT), graphene and transition metal dichalcogenides. The performance of silver-nanoparticles saturable absorber will be investigated at C- and S- band regions. Silver-nanoparticles saturable absorber was made into thin film to allow for easy integration into fiber laser cavity. The measured modulation depth and saturation intensity of the silver-nanoparticle SA are 31.6% and 0.54 MW/cm2, respectively. When inserted between fiber ferrules, the silver-nanoparticles SA generated a self-starting passive Q switched lasers operating in C- and S-bands. C-band Q-switched fiber laser has an increasing repetition rate from 19.4 – 74.1 kHz, while the pulsewidth decreased from 8.88 – 3.2 μs as pump power was increased. The laser also showed wavelength tunability from 1552.9 – 1580.2 nm. The repetition rate increased from 29 – 48 kHz, while the pulsewith decreased from 6.8 – 0.8 μs. The wavelength can be tuned from 1493nm to 1500nm. These results demonstrated that silver-nanoparticles is a new 2D material that can be utilized to generate passive Q-switched which can be utilized in various photonic
application.
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| first_indexed | 2025-11-14T14:01:58Z |
| format | Thesis |
| id | um-12494 |
| institution | University Malaya |
| institution_category | Local University |
| last_indexed | 2025-11-14T14:01:58Z |
| publishDate | 2019 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | um-124942021-11-30T23:28:24Z Passive Q-switched fiber laser in C-and S band region using silver nanoparticles as a saturable absorber / Nur E’Zzati Ruslan Nur E’Zzati , Ruslan Q Science (General) QC Physics This research aims to investigate the feasibility of silver-nanoparticles as a saturable absorber (SA) to passively generate Q-switched pulses in C- and S- bands. Previously, passive Q-switched lasers is generated by employing nonlinear polarization rotation (NPR) and semiconductor saturable absorber mirrors (SESAMs). Recently, passive Q switched lasers can also be generated using 2D materials such as single-walled carbon nanotubes (SWCNT), graphene and transition metal dichalcogenides. The performance of silver-nanoparticles saturable absorber will be investigated at C- and S- band regions. Silver-nanoparticles saturable absorber was made into thin film to allow for easy integration into fiber laser cavity. The measured modulation depth and saturation intensity of the silver-nanoparticle SA are 31.6% and 0.54 MW/cm2, respectively. When inserted between fiber ferrules, the silver-nanoparticles SA generated a self-starting passive Q switched lasers operating in C- and S-bands. C-band Q-switched fiber laser has an increasing repetition rate from 19.4 – 74.1 kHz, while the pulsewidth decreased from 8.88 – 3.2 μs as pump power was increased. The laser also showed wavelength tunability from 1552.9 – 1580.2 nm. The repetition rate increased from 29 – 48 kHz, while the pulsewith decreased from 6.8 – 0.8 μs. The wavelength can be tuned from 1493nm to 1500nm. These results demonstrated that silver-nanoparticles is a new 2D material that can be utilized to generate passive Q-switched which can be utilized in various photonic application. 2019 Thesis NonPeerReviewed application/pdf http://studentsrepo.um.edu.my/12494/1/Nur_E%E2%80%99Zzati.pdf Nur E’Zzati , Ruslan (2019) Passive Q-switched fiber laser in C-and S band region using silver nanoparticles as a saturable absorber / Nur E’Zzati Ruslan. Masters thesis, Universiti Malaya. http://studentsrepo.um.edu.my/12494/ |
| spellingShingle | Q Science (General) QC Physics Nur E’Zzati , Ruslan Passive Q-switched fiber laser in C-and S band region using silver nanoparticles as a saturable absorber / Nur E’Zzati Ruslan |
| title | Passive Q-switched fiber laser in C-and S band region using silver nanoparticles as a saturable absorber / Nur E’Zzati Ruslan |
| title_full | Passive Q-switched fiber laser in C-and S band region using silver nanoparticles as a saturable absorber / Nur E’Zzati Ruslan |
| title_fullStr | Passive Q-switched fiber laser in C-and S band region using silver nanoparticles as a saturable absorber / Nur E’Zzati Ruslan |
| title_full_unstemmed | Passive Q-switched fiber laser in C-and S band region using silver nanoparticles as a saturable absorber / Nur E’Zzati Ruslan |
| title_short | Passive Q-switched fiber laser in C-and S band region using silver nanoparticles as a saturable absorber / Nur E’Zzati Ruslan |
| title_sort | passive q-switched fiber laser in c-and s band region using silver nanoparticles as a saturable absorber / nur e’zzati ruslan |
| topic | Q Science (General) QC Physics |
| url | http://studentsrepo.um.edu.my/12494/ http://studentsrepo.um.edu.my/12494/1/Nur_E%E2%80%99Zzati.pdf |