Generation of passively Q‐switched ytterbium laser by using tungsten tri‐oxide film absorber
| العنوان: | Generation of passively Q‐switched ytterbium laser by using tungsten tri‐oxide film absorber |
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| المؤلفون: | Sulaiman Wadi Harun, Wei Ru Wong, Ahmed H.H. Al-Masoodi, Ahmed Shakir Al-Hiti |
| المصدر: | IET Optoelectronics. 14:278-284 |
| بيانات النشر: | Institution of Engineering and Technology (IET), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Ytterbium, Materials science, business.industry, chemistry.chemical_element, Saturable absorption, 02 engineering and technology, Laser, 01 natural sciences, Q-switching, Atomic and Molecular Physics, and Optics, law.invention, Pulsed laser deposition, 010309 optics, Optical pumping, 020210 optoelectronics & photonics, chemistry, law, Fiber laser, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Optoelectronics, Electrical and Electronic Engineering, Thin film, business |
| الوصف: | This study experimentally demonstrates a Q-switched fibre laser using a new tungsten tri-oxide (WO 3 )-based saturable absorber (SA). Using the drop and casting approach, we managed to prepare a thin film that contained WO 3 powders in polyvinyl alcohol. A small bit of the film was used to form an SA which was placed in a ytterbium-doped fibre laser cavity to generate a Q-switched laser. The laser, operating at 1063.78 nm, was realised at the threshold pump power of 85 mW with a repetition rate of 23.87 kHz and a pulse width of 5.56 μs. At the pump power of 147 mW, the laser produced the maximum pulse energy of 625 nJ, signal-to-noise ratio of 59 dB, the repetition rate of 39.79 kHz and pulse width of 2.37 μs. To the best of our knowledge, this is the first demonstration of using WO 3 SA to generate the pulse laser in the 1 μm region. |
| تدمد: | 1751-8776 1751-8768 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::2d509538b35c2d8786c467a6bb8bc582 https://doi.org/10.1049/iet-opt.2019.0153 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........2d509538b35c2d8786c467a6bb8bc582 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17518776 17518768 |
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