Journal
LASER PHYSICS LETTERS
Volume 9, Issue 1, Pages 54-58Publisher
IOP PUBLISHING LTD
DOI: 10.1002/lapl.201110085
Keywords
graphene saturable absorber; Q-switching; fiber laser; wavelength tunable operation
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Funding
- National Natural Science Foundation of China [11074078]
- Specialized Research Fund for the Doctoral Program of Higher Education, China [20094407110002]
- Foundation for Distinguished Young Talents in Higher Education of Guangdong, China [C10183]
- Higher Education Institutes in Guangdong Province [cxzd1011]
- South China Normal University, China
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We demonstrated a wide-band tunable passively Qswitched fiber laser by using a graphene-based saturable absorber (SA). The graphene SA was prepared through the optically driven deposition method. The Q-switched operation was initiated with a low pump threshold of about 33 mW. The wavelength tunable operation was obtained with a narrow bandwidth tunable filter. Experimentally, the stable Q-switched pulse with a tunable range from 1519.3 to 1569.9 nm was achieved, covering a wavelength range of over 50.6 nm. (C) 2012 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA)
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