Few-layer ReS2(1−x)Se2x nanoflakes for noise-like pulse generation in a mode-locked ytterbium-doped fiber laser
| Autor: | Mengyuan Ma, Zhiyi Wei, Wen Wen, Junli Wang, Liming Xie, Yao Zhang, Chenxi Dou, Ching-Hwa Ho |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Ytterbium
Materials science business.industry chemistry.chemical_element Nonlinear optics 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Laser 01 natural sciences 0104 chemical sciences law.invention Pulse (physics) Optical modulator chemistry law Fiber laser Materials Chemistry Optoelectronics Photonics 0210 nano-technology business Ultrashort pulse |
| Zdroj: | Journal of Materials Chemistry C. 7:6900-6904 |
| ISSN: | 2050-7534 2050-7526 |
| Popis: | We investigated the ternary ReS2(1−x)Se2x alloys and fabricated few-layer ReS1.02Se0.98 nanoflakes to realize passive Q-switch and noise-like pulses operating at 1 μm wavelength. Stable Q-switching pulses can be achieved with a threshold pump power of 180 mW and a maximum pump power of 300 mW. The single pulse energy of 81.47 nJ and pulse width as narrow as 2.2 μs at 1035 nm center wavelength were achieved. By optimizing the parameters of the cavity, self-started noise-like pulses were realized, which are centered at 1031 nm. The average pulse width of the spike was 283 fs on the top of a broad pedestal and the fundamental repetition was 38.98 MHz. Our work demonstrates that ReS1.02Se0.98 has potential applications in optical modulators, and also opens up new application opportunities for these novel materials in nonlinear optics and ultrafast laser photonic technologies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|