Size effect of WSe2on red passively Q-switched fiber laser output performance
| Autor: | Zhenrong Guo, Zhiping Cai, Huiying Xu, Jian Peng, Jian Weng, Duanduan Wu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Pulse (signal processing) business.industry Pulse duration chemistry.chemical_element 02 engineering and technology Tungsten 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics Power (physics) 010309 optics chemistry.chemical_compound Optics chemistry ZBLAN Fiber laser Selenide 0103 physical sciences Direct and indirect band gaps Electrical and Electronic Engineering 0210 nano-technology business Engineering (miscellaneous) |
| Zdroj: | Applied Optics. 57:4955 |
| ISSN: | 2155-3165 1559-128X |
| DOI: | 10.1364/ao.57.004955 |
| Popis: | Transition metal dichalcogenides (TMDs) possess a direct bandgap in the visible frequency range and can be applied as attractive visible saturable absorbers (SAs). In this paper, a new TMDs tungsten selenide (WSe2)-based red Q-switcher is fabricated and successfully used for Q-switched pulse generation in a red Pr3+-doped ZBLAN fiber laser. The passive Q-switching fiber laser at 635.2 nm generates a stable pulse with pulse duration of 504 ns and average output power of 4.91 mW as well as a tunable pulse repetition rate of 131.9-260.4 kHz. Furthermore, the size effect of WSe2 on the 635 nm passive Q-switching output performance is also investigated. Our work will provide certain significance for the optimization of passive Q-switching red fiber lasers based on TMDs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|