Page 278 - High Power Laser Handbook
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246 So l i d - S t at e La s e r s Thin-Disc Lasers 247
Gain
300 µm thickness, 9% doping
600 µm thickness, 4.5% doping
900 µm thickness, 3% doping
40 3.0
Extractable energy
2.5
30 2.0
Double pass gain (%) 20 1.5 Extractable energgy (J)
10 1.0
0.5
0 0.0
0 200 400 600 800 1000
Time (µs)
Figure 10.15 Temporal development of gain (solid lines) and extractable
energy (dashed lines) with different thicknesses and doping concentrations.
Applied pump power 16 kW, pump spot radius 9.2 mm.
25 10
20 8
Double pass gain (%) 15 6 Extractable energy (J)
10
4
Gain
HR = 1
5 2
HR "ideal"
Extractable energy
0 0
0 200 400 600 800 1000
Time (µs)
Figure 10.16 Temporal development of gain (solid lines) and extractable
energy (dashed lines) with partial transmission of the ASE through the HR
coating. Doping concentration 4.5 percent, thickness 600 µm, pump power
64 kW, pump spot radius 18.4 mm.
