Tungsten disulphide based all fiber Q-switching cylindrical-vector beam generation
- Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei 230026 (China)
- Electro-Optics Program, University of Dayton, Dayton, Ohio 45469 (United States)
We proposed and demonstrated an all fiber passively Q-switching laser to generate cylindrical-vector beam, a two dimensional material, tungsten disulphide (WS{sub 2}), was adopted as a saturable absorber inside the laser cavity, while a few-mode fiber Bragg grating was used as a transverse mode-selective output coupler. The repetition rate of the Q-switching output pulses can be varied from 80 kHz to 120 kHz with a shortest duration of 958 ns. Attributed to the high damage threshold and polarization insensitivity of the WS{sub 2} based saturable absorber, the radially polarized beam and azimuthally polarized beam can be easily generated in the Q-switching fiber laser.
- OSTI ID:
- 22486033
- Journal Information:
- Applied Physics Letters, Vol. 107, Issue 19; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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