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Rhenium diselenide as the broadband saturable absorber for the nanosecond passively Q-switched thulium solid-state lasers.
- Source :
-
Optical Materials . Feb2019, Vol. 88, p630-634. 5p. - Publication Year :
- 2019
-
Abstract
- Abstract The feasibility of using rhenium diselenide (ReSe 2) as the saturable absorber for the broadband passively Q-switched (PQS) thulium solid-state lasers was demonstrated in this paper. In the short wavelength of 2 μm region, the combination of Tm:YLF and ReSe 2 was used to achieve the PQS operation with multi-wavelength around 1900 nm. A maximum average output power of 862 mw, a shortest pulse width of 527.9 ns and a repetition rate of 54 kHz were obtained. In the long wavelength of 2 μm region, a ReSe 2 -based PQS multi-wavelength Tm:Y 2 O 3 laser around 2050 nm was realized, generating a maximum average output power of 1.04 W, a shortest pulse width of 727 ns and a repetition rate of 106 kHz. The output performance of the ReSe 2 -based pulsed laser is competitive among these PQS thulium solid-state lasers using the emerging two-dimensional materials as SAs, indicating that ReSe 2 is a promising broadband SA for the 2 μm solid-state lasers. Highlights • The results demonstrate the possibility of generating 2 μm nanosecond pulses by using ReSe 2 as broadband saturable absorbers. • The ReSe 2 -based output mirror combines the function of passive Q-switching and output coupling. • The output performance of the ReSe2 passively Q-switched Tm solid-state lasers is competitive. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09253467
- Volume :
- 88
- Database :
- Academic Search Index
- Journal :
- Optical Materials
- Publication Type :
- Academic Journal
- Accession number :
- 134848624
- Full Text :
- https://doi.org/10.1016/j.optmat.2018.12.042