Diode-end-pumped Nd3+-doped oxyorthosilicate GYSO lasers operating on 4F3/2 → 4I13/2 transition

We report on diode-pumped continuous-wave Nd:GdYSiO5 lasers, operating on the 4F3/2 → 4I13/2 transition around the 1.3 µm spectral domain, for the first time to our knowledge. In free-running laser operation, a maximum output power of up to 0.81 W can be obtained at 1357.45 nm with a corresponding slope efficiency of about 10.9%. Wavelength tuning is also realized by using an etalon with a tuning range of about 4 nm. The low-gain emission line at 1386.23 nm is explored with a maximum output power of 0.21 W and a slope efficiency of about 5.3%, using an output coupler coated in a particular way.