Back to Search
Start Over
Direct generation of optical vortex pulses.
- Source :
- Applied Physics Letters; 7/16/2012, Vol. 101 Issue 3, p031113-031113-4, 1p, 2 Color Photographs, 2 Graphs
- Publication Year :
- 2012
-
Abstract
- We demonstrate the direct generation of optical vortex pulses with stable energy and changeable orbital angular momentum. Single Laguerre-Gaussian (LG0,l) laser modes were directly generated using a laser diode with output intensity profile of doughnut distribution. With passive Q-switching, vortex pulses with stable energy were obtained. Moreover, the topological charge was changeable by variation of the pump power. By a mode-converter and second harmonic generation, the LG0,2l mode was identified. It can be proposed that this pulsed laser should have promising applications in various fields based on its compact structure, stable and high pulse energy, and changeable orbital angular momentum. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 101
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 77958568
- Full Text :
- https://doi.org/10.1063/1.4737943