Gamma alumina as a saturable absorbing material for C- and L-band ultrafast mode-locked fiber lasers
This work demonstrates femtosecond pulse generations in C- and L-band regimes utilizing a gamma-aluminum oxide/polydimethylsiloxane saturable absorber (γ-Al2O3/PDMS-SA) via mode-locking technique. The γ-Al2O3/PDMS-SA has a 7.3% modulation depth and a moderate saturation intensity of 303 MW/cm2, and...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier B.V.
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/119316/ http://psasir.upm.edu.my/id/eprint/119316/1/119316.pdf |
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| author | Pikau, N. F. Mohd Yusoff, N. Sarmani, A. R. Muhammad, F. D. Alresheedi, M. T. Ng, E. K. Mahdi, M. A. |
| author_facet | Pikau, N. F. Mohd Yusoff, N. Sarmani, A. R. Muhammad, F. D. Alresheedi, M. T. Ng, E. K. Mahdi, M. A. |
| author_sort | Pikau, N. F. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This work demonstrates femtosecond pulse generations in C- and L-band regimes utilizing a gamma-aluminum oxide/polydimethylsiloxane saturable absorber (γ-Al2O3/PDMS-SA) via mode-locking technique. The γ-Al2O3/PDMS-SA has a 7.3% modulation depth and a moderate saturation intensity of 303 MW/cm2, and estimated damage threshold of greater than 8.49 and 3.57 GW/cm2 pumping intensities in C- and L-band wavelengths, respectively. In the C-band laser cavity, the generated mode-locked pulse delivered a low threshold of 28.7 mW and an ultrafast width of 622 fs. Meanwhile, a higher threshold of 108.6 mW and 942 fs pulse width were measured in the L-band laser cavity centered at 1611 nm. These demonstrations showcase a versatile feature of γ-Al2O3 as a light-absorbing material that generates ultrashort pulses in a wideband wavelength range, which could benefit future research on the metastable state of aluminum-based materials within the field of ultrafast photonics. |
| first_indexed | 2025-11-15T14:44:22Z |
| format | Article |
| id | upm-119316 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:44:22Z |
| publishDate | 2024 |
| publisher | Elsevier B.V. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1193162025-08-14T02:46:56Z http://psasir.upm.edu.my/id/eprint/119316/ Gamma alumina as a saturable absorbing material for C- and L-band ultrafast mode-locked fiber lasers Pikau, N. F. Mohd Yusoff, N. Sarmani, A. R. Muhammad, F. D. Alresheedi, M. T. Ng, E. K. Mahdi, M. A. This work demonstrates femtosecond pulse generations in C- and L-band regimes utilizing a gamma-aluminum oxide/polydimethylsiloxane saturable absorber (γ-Al2O3/PDMS-SA) via mode-locking technique. The γ-Al2O3/PDMS-SA has a 7.3% modulation depth and a moderate saturation intensity of 303 MW/cm2, and estimated damage threshold of greater than 8.49 and 3.57 GW/cm2 pumping intensities in C- and L-band wavelengths, respectively. In the C-band laser cavity, the generated mode-locked pulse delivered a low threshold of 28.7 mW and an ultrafast width of 622 fs. Meanwhile, a higher threshold of 108.6 mW and 942 fs pulse width were measured in the L-band laser cavity centered at 1611 nm. These demonstrations showcase a versatile feature of γ-Al2O3 as a light-absorbing material that generates ultrashort pulses in a wideband wavelength range, which could benefit future research on the metastable state of aluminum-based materials within the field of ultrafast photonics. Elsevier B.V. 2024 Article PeerReviewed text en cc_by_nc_nd_4 http://psasir.upm.edu.my/id/eprint/119316/1/119316.pdf Pikau, N. F. and Mohd Yusoff, N. and Sarmani, A. R. and Muhammad, F. D. and Alresheedi, M. T. and Ng, E. K. and Mahdi, M. A. (2024) Gamma alumina as a saturable absorbing material for C- and L-band ultrafast mode-locked fiber lasers. Results in Physics, 61. art. no. 107759. pp. 1-10. ISSN 2211-3797 https://linkinghub.elsevier.com/retrieve/pii/S221137972400442X 10.1016/j.rinp.2024.107759 |
| spellingShingle | Pikau, N. F. Mohd Yusoff, N. Sarmani, A. R. Muhammad, F. D. Alresheedi, M. T. Ng, E. K. Mahdi, M. A. Gamma alumina as a saturable absorbing material for C- and L-band ultrafast mode-locked fiber lasers |
| title | Gamma alumina as a saturable absorbing material for C- and L-band ultrafast mode-locked fiber lasers |
| title_full | Gamma alumina as a saturable absorbing material for C- and L-band ultrafast mode-locked fiber lasers |
| title_fullStr | Gamma alumina as a saturable absorbing material for C- and L-band ultrafast mode-locked fiber lasers |
| title_full_unstemmed | Gamma alumina as a saturable absorbing material for C- and L-band ultrafast mode-locked fiber lasers |
| title_short | Gamma alumina as a saturable absorbing material for C- and L-band ultrafast mode-locked fiber lasers |
| title_sort | gamma alumina as a saturable absorbing material for c- and l-band ultrafast mode-locked fiber lasers |
| url | http://psasir.upm.edu.my/id/eprint/119316/ http://psasir.upm.edu.my/id/eprint/119316/ http://psasir.upm.edu.my/id/eprint/119316/ http://psasir.upm.edu.my/id/eprint/119316/1/119316.pdf |