Passively Q-switched pulses from ytterbium-doped fiber laser (YDFL) using copper oxide (CuO) nanoparticles as a saturable absorber
| Autor: | Ahmed H.H. Al-Masoodi, M.H.M. Ahmed, Omar B. Abdulghafoor, Ab. H. H. Al Masoodi, Sulaiman Wadi Harun, I. A. M. Alani |
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| Rok vydání: | 2020 |
| Předmět: |
Ytterbium
Copper oxide Materials science business.industry chemistry.chemical_element Saturable absorption 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences Electronic Optical and Magnetic Materials law.invention 010309 optics chemistry.chemical_compound chemistry law Fiber laser Optical cavity 0103 physical sciences Optoelectronics Thin film 0210 nano-technology business Pulse-width modulation |
| Zdroj: | Optical Materials Express. 10:2896 |
| ISSN: | 2159-3930 |
| DOI: | 10.1364/ome.403713 |
| Popis: | A high pulse energy Q-switched ytterbium-doped fiber laser (YDFL) based on copper oxide (CuO) nanoparticles as a saturable absorber (SA) is demonstrated. The CuO nanoparticles have been fabricated into a thin film using a liquid-phase exfoliation method then it was integrated into a laser cavity to act as Q-switcher. The proposed Q-switched YDFL operates at a central wavelength of 1035.4 nm with a 3-dB bandwidth of 0.26 nm. The Q-switched laser has a repetition rate range from 57 kHz to 104 kHz by varying the pump power from 179 mW to 226.5 mW, while the pulse width was tuned from 4.5 µs to 2.2 µs. Relatively, high pulse energy around 0.192 µJ was achieved at an average output power of 20 mW. This laser with high pulse energy can be seen as a very promising pulsed laser source in many industrial and optical sensing applications. To the best of our knowledge, this is the first demonstration of a Q-switched fiber laser using CuO-SA in YDF. |
| Databáze: | OpenAIRE |
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