Experimental study of a VBG-based Tm : YLF slab laser at different output coupler parameters
Journal Article
·
· Quantum Electronics (Woodbury, N.Y.)
- National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001 (China)
The performance of a Tm : YLF slab laser is studied at different output coupler parameters. Use is made of a 20-mm-long a-cut slab crystal doped with 2.5 at. % thulium ions. With a volume Bragg grating and a Fabry – Perot etalon, the selected output wavelength of this Tm : YLF slab laser is 1908 nm. For the optimised output coupler with a transmission of 20% and a radius of curvature of 300 mm, the output power exceeds 74.1 W and the slope efficiency with respect to the absorbed pump power reaches 48.4%. In addition, the beam quality of the Tm : YLF slab laser is improved. (lasers)
- OSTI ID:
- 22551268
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 4 Vol. 45; ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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