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- Title
High-efficiency direct-pumped Nd:YLF laser operating at 1321 nm.
- Authors
Lü, Y. F.; Xia, J.; Zhang, X. H.; Zhang, A. F.; Wang, J. G.; Bao, L.; Yin, X. D.
- Abstract
We present a high-efficiency Nd: LiYF4 (Nd:YLF) laser operating at 1321 nm pumped directly into the emitting level, 4F3/2. The linear polarization of the pump diode laser was maintained by a short fiber. At the absorbed pump power of 7.3 W, as high as 3.6 W of continuous-wave output power at 1321 nm is achieved. The slope efficiency with respect to the absorbed pump power was 0.52. To the best of our knowledge, this is the first demonstration of such a laser system. Comparative results obtained for the pump with a diode laser at 806 nm, into the highly absorbing 4F5/2 level, are given in order to prove the advantages of 880 nm wavelength pumping.
- Subjects
LASERS; OPTICAL polarization; DIODES; LIGHT amplifiers; WAVELENGTHS
- Publication
Applied Physics B: Lasers & Optics, 2010, Vol 98, Issue 2/3, p305
- ISSN
0946-2171
- Publication type
Article
- DOI
10.1007/s00340-009-3792-5