Wide wavelength tuning on ^sup 4^F^sub 3/2^→^sup 4^I^sub 13/2^ transitions from Nd:ScYSiO^sub 5^ laser

The polarized fluorescence spectra of the Nd:ScYSiO5 (Nd:SYSO) crystal were explored to manifest the tunable single- and multi-wavelength oscillations on the 4F3/2→4I13/2 transitions. A maximum continue-wave output power of 1.26 W was finally obtained from linear cavity. A birefringent filter (BF) was inserted into the V-cavity to achieve wavelength-tuning centered at 1346 nm, 1358 nm, and 1394 nm with tunable range of 4 nm, 6 nm, and 9 nm, respectively. Additionally, simultaneous multi-wavelength oscillation was obtained with the output power in the order of several hundred milliwatt.