Journal
OPTICS EXPRESS
Volume 24, Issue 2, Pages 1598-1603Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.24.001598
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Funding
- National Natural Science Foundation of China (NSFC) [51321091, 61275142, 61308042, 61575110, 61475088]
- Open Research Fund of the State Key Laboratory of Pulsed Power Laser Technology, Electronic Engineering Institute, Hefei, China [SKL2014KF01]
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A high-quality black phosphorus (BP) saturable-absorber mirror (SAM) was successfully fabricated with the multi-layered BP, prepared by liquid-phase exfoliation (LPE) method. The modulation depth and saturation power intensity of BP absorber were measured to be 10.7% and 0.96 MW/cm(2), respectively. Using the BP-SAM, we experimentally demonstrated the mid-infrared (mid-IR) pulse generation from a BP Q-switched Cr:ZnSe laser for the first time to our best knowledge. Stable Q-switched pulse as short as 189 ns with an average output power of 36 mW was realized at 2.4 mu m, corresponding to a repetition rate of 176 kHz and a single pulse energy of 205 nJ. Our work sufficiently validated that multi-layer BP could be used as an optical modulator for mid-IR pulse laser sources. (C) 2016 Optical Society of America
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