Sibo Wang, Ye Tian, Bo Qu, Zhanda Zhu, Yongling Hui, Hong Lei, Qiang Li. Experimental Exploration of Er∶YAG Cascaded Pulsed Laser at Room Temperature[J]. Acta Optica Sinica, 2022, 42(9): 0914001
- Acta Optica Sinica
- Vol. 42, Issue 9, 0914001 (2022)
Fig. 1. Partial energy level diagram of Er∶YAG
Fig. 2. Experimental setup for room-temperature cascade and non-cascade Er∶YAG laser
Fig. 3. Emission spectra of cascade Er∶YAG lasers at room temperature. (a) Er∶YAG with doping concentration of 7.5%; (b) Er∶YAG with doping concentration of 10%
Fig. 4. Measured output energy of 2937 nm laser varying with absorbed pump energy. (a) Er∶YAG with doping concentration of 7.5%; (b) Er∶YAG with doping concentration of 10%
Fig. 5. Experimental setup used for measurement of ESA spectrum
Fig. 6. Supercontinuum spectra with and without pumping (ESA can be observed from difference of these two sets of spectral signals)
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