Table 3.
Ho3+ doped fluoride (ZBLAN) glasses for ∼ 2 μm laser operation.
| Glass Material | Pump Source | Pump wavelength, λP (nm) | Threshold power, Pth (mW) | Laser wavelength, λL (nm) | Output power, Pout (mW) | Laser slope efficiency, ηs (%) | Ref |
|---|---|---|---|---|---|---|---|
| Ho3+: ZBLAN | Diode | 1150 | 28 | 2900 | 27 | 20 | [48] |
| Ho3+: ZBLAN | Tm f. Laser | 1945 | 180 | 2070 | 1100 | 51 | [38] |
| Tm3+/Ho3+: ZBLAN | Ti: Sa | 790 | 75 | 2100 | 25 | 29 | [49] |
| Tm3+/Ho3+: ZBLAN | Ti: Sa | 790 | 20 | 2052 | 76 | 20 | [37] |
| Tm3+: ZBLAN | Diode | 790 | 21 | 1880 | 47 | 50 | [49] |
| Tm3+: ZBLAN | Ti: Sa | 790 | 75 | 1900 | 132 | 50 | [37] |
| Tm3+: ZBLAN | Diode | 791 | 265 | 1900 | 60 | 54 | [50] |
| Tm3+: ZBLAN | Ti: Sa | 790 | 12 | 1890 | 205 | 67 | [51] |