Table 1 The single LG mode operation achieved with different lenses (L2)
Focal length | Shape | Pump power | Radial indices p | Angular indices m | Range of δ | Output power range |
|---|---|---|---|---|---|---|
15.3 mm | Plano-Convex | 1.03 W | 0 | 1–5 | 0.20–0.37 mm | 10–57 mW |
25.4 mm | Plano-Convex | 1.03 W | 0–4 | 2–16 | 0.70–1.23 mm | 123–155 mW |
33.9 mm | Plano-Convex | 1.03 W | 0 | 10–33 | 1.30–1.80 mm | 18–191 mW |
51.8 mm | Bi-Convex | 1.03 W | 0 | 27–75 | 4.42–5.14 mm | 11–124 mW |
1.20 W | 0 | 32–95 | 4.50–5.60 mm | 2–132 mW |