Abstract
Depressed-cladding waveguides are produced in a Yb,Na:CaF2 laser crystal by applying an ultrafast laser inscription. Under pumping at 946 nm, continuous-wave (CW) and Q-switched laser oscillations with low thresholds are realized in these waveguide structures. With the variation of pumping power, switchable single- and dual-wavelength laser emissions peaking at 1013.9 nm and 1027.9 nm are generated. The maximum output power achieved for CW lasing is about 170 mW, corresponding to an optical-to-optical conversion efficiency as high as 45.3%. A pulse energy of 0.13 μJ is obtained for the waveguide laser operating in the pulsed regime.
Original language | English |
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Pages (from-to) | 1633-1641 |
Number of pages | 9 |
Journal | Optical Materials Express |
Volume | 8 |
Issue number | 6 |
Early online date | 22 May 2018 |
DOIs | |
Publication status | Published - 1 Jun 2018 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials