Q-switched erbium-doped fiber laser with silicon oxycarbide saturable absorber
| Autor: | Z. A. Umar, Effariza Hanafi, Sulaiman Wadi Harun, Bilal Nizamani, Muhammad Aslam Baig, M.I.M. Abdul Khudus, Faisal Ahmed Memon, Mustafa Mohammed Najm, Sameer Salam |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
business.industry Silicon oxycarbide Saturable absorption 02 engineering and technology Sputter deposition 021001 nanoscience & nanotechnology Laser 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics Signal-to-noise ratio law 0103 physical sciences Optoelectronics Electrical and Electronic Engineering 0210 nano-technology Pulse energy business Erbium doped fiber lasers |
| Zdroj: | Optik. 219:165234 |
| ISSN: | 0030-4026 |
| Popis: | We have experimentally demonstrated a Q-switched erbium doped fiber laser (EDFL) by using silicon oxycarbide (SiOC) as saturable absorber (SA). The SiOC was prepared by reactive RF magnetron sputtering before being mechanically exfoliated and inserted in cavity to generate Q-switched pulses operating at 1561.7 nm. Pulses as short as 2.1 μs were generated at the repetition rate of 96.7 kHz, having signal to noise ratio (SNR) of 70 dB. The Q-switched EDFL pulses remained stable between pump powers of 111.5−198 mW. At the pump power value of 198 mW, the Q-switched EDFL generated pulses with output power of 2.4 mW and high pulse energy of about 25 nJ. For the first time SiOC is introduced to be used as a SA in the EDFL cavity for Q-switched laser sources. |
| Databáze: | OpenAIRE |
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