Journal article

Tunable Pr3+-Yb3+-doped all-fiber upconversion laser

Fiber lasers in the visible spectral range at 603 and 634 nm were demonstrated using upconversion in fluoride Pr3+-Yb3+-doped fibers and Bragg gratings photoinduced in germanosilicate fibers. Reliable fine tuning of the all-fiber laser over 6.9 at 603 nm has been demonstrated using high strength fiber Bragg gratings.


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