Figure 4
The output signal spectrum of the ~5.5 μm OPO laser at pump powers of 0, 40, and 80 mW, respectively, in the 4.1 μm resonantly pumped Pr3+-doped chalcogenide fibre amplifier.
Figure 4 | Scientific Reports
The output signal spectrum of the ~5.5 μm OPO laser at pump powers of 0, 40, and 80 mW, respectively, in the 4.1 μm resonantly pumped Pr3+-doped chalcogenide fibre amplifier.
