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Graphene mode-locked femtosecond Cr:ZnSe laser at 2500 nm

Cited 126 time in Web of Science Cited 141 time in Scopus
Authors
Cizmeciyan, M. N.; Kim, J. W.; Bae, S.; Hong, Byung Hee; Rotermund, F.; Sennaroglu, A.
Issue Date
2013-02
Citation
Optics Letters, Vol.38 No.3, pp.341-343
Abstract
We report, for the first time to our knowledge, femtosecond pulse generation from a graphene mode-locked Cr:ZnSe laser at 2500 nm. To minimize the insertion losses at the lasing wavelength, high-quality monolayer graphene transferred on a CaF2 substrate was used in the experiments. Once mode-locking was initiated, the laser generated a stable train of 226 fs pulses with a time-bandwidth product of 0.39. The mode-locked laser operated at a pulse repetition rate of 77 MHz and produced 80 mW output power with an incident pump power of 1.6 W. To our knowledge, this is the longest laser wavelength at which graphene-based passive mode-locking has been demonstrated to date. (C) 2013 Optical Society of America
ISSN
0146-9592
URI
https://hdl.handle.net/10371/172260
DOI
https://doi.org/10.1364/OL.38.000341
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College of Natural Sciences (자연과학대학)Dept. of Chemistry (화학부)Journal Papers (저널논문_화학부)
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