Jian Ma, Tingting Lu, Xiaolei Zhu, Xiuhua Ma, Shiguang Li, Tianhua Zhou, Weibiao Chen. Highly efficient H-β Fraunhofer line optical parametric oscillator pumped by a single-frequency 355 nm laser[J]. Chinese Optics Letters, 2018, 16(8): 081901
- Chinese Optics Letters
- Vol. 16, Issue 8, 081901 (2018)
Fig. 1. Schematic diagram of the experimental setup.
Fig. 2. Output 486.1 nm laser pulse energy as a function of the pump energy with cavity length of 60 mm.
Fig. 3. Near-field beam profile of OPO output laser with pulse energy of 62 mJ.
Fig. 4. Conversion efficiency and beam divergence angle as a function of the OPO cavity length.
Fig. 5. Pulse temporal profiles of OPO pump laser and output laser.
Fig. 6. OPO output laser spectrum and solar reference spectrum[20].
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