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.
Camille Sophie Brès, Moritz Bartnick, Gayathri Bharathan
Camille Sophie Brès, Marco Clementi, Jiaye Wu, Qian Li, Xuanyi Liu
Camille Sophie Brès, Moritz Bartnick, Gayathri Bharathan