Yangyang Liang, Tao Li, Baitao Zhang, Jingliang He, Sascha Kalusniak, Xian Zhao, Christian Kränkel. 14.1 W continuous-wave dual-end diode-pumped Er:Lu2O3 laser at 2.85 µm[J]. Chinese Optics Letters, 2024, 22(1): 011403
- Chinese Optics Letters
- Vol. 22, Issue 1, 011403 (2024)
Fig. 1. Simplified energy levels of the Er3+ ions and the energy transfer mechanism.
Fig. 2. Laser schemes of (a) the single-end-pumped and (b) the dual-end-pumped Er:Lu2O3 lasers.
Fig. 3. Laser characteristics of (a) the single-end-pumped and (b) the dual-end-pumped setups for different T by using 35:200 and 35:200:200 lens group, respectively.
Fig. 4. Laser characteristics of the TEC-cooled (a) single- and (b) dual-end-pumped setup resonator with different OC transmissions.
Fig. 5. (a) Power instability (PV) of the water-cooled laser at 8 W and the TEC-cooled laser at 12 W. (b) Variation of the power instability (PV) versus the output power of the water- and TEC-cooled lasers.
Fig. 6. Laser spectra of the TEC-cooled dual-end-pumped resonator at 3% OC transmission at different output power levels.
Fig. 7. M2 values versus the output power level for 3% OC transmission in the dual-end-pumped water-cooled resonator configuration. Inset: spatial beam characteristics and M2 values at 2 W.
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Table 1. Summary of the Results Obtained with Different Er:Lu2O3 Resonator Configurations
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