Investigation of the Impact of the Pumping Beam Waist Size and Position on the Efficiency of YVO4/Nd : YVO4/YVO4 Laser Generation

Table 1

Parameters of the pumping beam.

Distance of the fibre from the optics (mm)	Diameter of the beam waist ()	Distance of the beam waist from the optics (mm)	Divergence of the beam (mrad)	Rayleigh range (mm)
10	96	6	549	0.2
7	118	8	393	0.3
5	161	11	289	0.6
3	252	16	181	1.4
2	345	22	129	2.7