The data to generate figures 3 – 8: 
1.	Csv file (Figure 3(a)): contains the attenuations of the feedback fiber for figure 3(a) ; 
2.	Csv file (Figure 3(b)): contains the P(9) absorption line for figure  3 (b); 
3.	Csv file (Figure 4(a)): contains optical spectra for different pump transitions in figure 4(a); 
4.	Csv file (Figure 5(a)): contains the CW pump power/output power and stability of laser output as a function of time for figure 5(a);
5.	Csv file (Figure 5(b)): contains the stability of laser output as a function of time for figure 5(b);
6.	Csv file (Figure 5(b) inset): contains the mode profile of 3um laser for figure 5(b) inset;
7.	Csv file (Figure 6): contains the Measured output power as a function of pump repetition rate for figure 6;
8.	Csv file (Figure 7): contains pump power/output power at selected repetition rates shown in figure 7. 
9.	Zip file (Figure 8): contains csv file of radio frequency spectra (a), optical spectra (b) and time dependence (c) for the pump (blue) and the laser (red) at selected repetition rates shown in figure 8.