All-Fiber Erbium-Doped Q-Switched Laser With Recycled Graphite Oxide
| Autor: | Marcelo E. V. Segatto, Carlos E. S. Castellani, Jair C. C. Freitas, Maria José Pontes, Yuli A. A. Pizarro, Luís C. B. Silva, Mariana A. Vieira |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
business.industry
chemistry.chemical_element Saturable absorption Graphite oxide Laser Q-switching Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Erbium chemistry.chemical_compound chemistry law Fiber laser Optoelectronics Lithium Graphite Electrical and Electronic Engineering business |
| Zdroj: | IEEE Photonics Technology Letters. 31:1713-1716 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/lpt.2019.2943252 |
| Popis: | This work demonstrates a passively Q-Switched fiber laser employing graphite oxide as a saturable absorber, generating tunable microsecond pulses with kHz repetition rates, pulse energies of up to 15.54 nJ and the pulse-to-pulse timing jitter of 46.14 fs. The graphite oxide samples were obtained by recycling the graphite present in Li-ion batteries utilized in cell phone devices through a chemical separation and subsequent oxidation process. Sample characterization employing X-ray diffraction, solid-state nuclear magnetic resonance and Raman spectroscopy showed that the produced graphite oxide exhibited a homogeneously oxidized structure. These results indicate that applications in the physics of pulsed lasers can benefit from the recycling of lithium batteries, directing the process of discarding spent batteries. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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