FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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A Single-Longitudinal-Mode Passively Q-Switched Nd:YVO$_{4}$ Laser Using Black Phosphorus Saturable Absorber |
Zhe Sun, Guang-Hua Cheng, Huan Liu, Xi Wang, Yong-Gang Wang** |
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119
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Cite this article: |
Zhe Sun, Guang-Hua Cheng, Huan Liu et al 2017 Chin. Phys. Lett. 34 014204 |
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Abstract A black phosphorus (BP) saturable absorber (SA) solution with different concentrations (1.0 and 0.5 mg/ml) is fabricated with the liquid-phase exfoliation method. By using the BP-SA, a compact diode-pumped passively Q-switched Nd:YVO$_{4}$ laser is demonstrated. One reflecting Bragg gratings is used as the output coupler for mode selection. By inserting those BP-SA solutions in the laser cavity, the maximum single longitude mode, Q-switched output powers of 126 mW at 692.5 kHz and 149 mW at 630.3 kHz are achieved at the pump power of 8.0 W, corresponding to the pulse durations of 144 ns and 196 ns, respectively. Moreover, longitudinal-mode characteristics of Q-switched output laser in different optical cavity lengths based on two-kind BP-SA solution concentrations are investigated. Our results show that BP-SA could also be developed as an effective SA for the Q-switched, single longitudinal mode pulse laser.
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Received: 17 October 2016
Published: 29 December 2016
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Fund: Supported by West Young Scholar Foundation of the Chinese Academy of Sciences under Grant No XAB2015B27. |
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