| Autor: |
N.F. Pikau, N. Mohd Yusoff, A.R. Sarmani, F.D. Muhammad, M.T. Alresheedi, E.K. Ng, M.A. Mahdi |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Results in Physics, Vol 61, Iss , Pp 107759- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2211-3797 |
| DOI: |
10.1016/j.rinp.2024.107759 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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