Journal
OPTICS LETTERS
Volume 41, Issue 1, Pages 56-59Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.41.000056
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Funding
- National Basic Research Program of China [2013CBA01505]
- National Natural Science Foundation of China (NSFC) [11421064]
- Shanghai Excellent Academic Leader Project [15XD1502100]
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A mid-infrared saturable absorber mirror is successfully fabricated by transferring the mechanically exfoliated black phosphorus onto the gold-coated mirror. With the as-prepared black phosphorus saturable absorber mirror, a continuous-wave passively mode-locked Er: ZBLAN fiber laser is demonstrated at the wavelength of 2.8 mu m, which delivers a maximum average output power of 613 mW, a repetition rate of 24 MHz, and a pulse duration of 42 ps. To the best of our knowledge, this is the first time a black phosphorus mode-locked laser at 2.8 mu m wavelength has been demonstrated. Our results demonstrate the feasibility of black phosphorus flake as a new two-dimensional material for application in mid-infrared ultrafast photonics. (C) 2015 Optical Society of America
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