Journal
PHOTONICS RESEARCH
Volume 6, Issue 9, Pages 900-907Publisher
OPTICAL SOC AMER
DOI: 10.1364/PRJ.6.000900
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Funding
- National Natural Science Foundation of China (NSFC) [61722503, 61435003, 61421002]
- Open Fund of Science and Technology on Solid-State Laser Laboratory
- Fundamental Research Funds for the Central Universities [ZYGX2016J068]
- International Scientific Cooperation Project of Sichuan Province [2017HH0046]
- National Key R&D Program of China [YS2018YFB110012]
- Natural Science Foundation of Zhejiang Province [LQ18A040004]
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We experimentally demonstrate a long-term stable two-dimensional saturable absorption material under ambient conditions-multi-layer antimonene feasible for the mid-infrared spectral region-for the first time to our knowledge. The multi-layer antimonene material prepared using a liquid-phase exfoliation method was coated on a quartz/CaF2 for characterizations and an Au mirror as a reflection-type saturable absorber (SA) device. It has a modulation depth of 10.5%, a saturation peak intensity of 0.26 GW/cm(2), and a non-saturation loss of 19.1% measured at 2868.0 nm using the typical power-dependent method. By introducing the SA device into a linear-cavity Ho3+/Pr3+-codoped fluoride fiber laser at 2865.0 nm, stable Q-switched pulses were obtained. It generated a maximum output power of 112.3 mW and pulse energy of 0.72 mu J, while the shortest pulse duration and largest repetition rate were 1.74 mu s and 156.2 kHz, respectively. The long-term stability of the SA device was also checked using the same laser setup within 28 days. The results indicate that multi-layer antimonene is a type of promising long-term stable SA material under ambient conditions that can be applied in the mid-infrared spectral region. (C) 2018 Chinese Laser Press
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