期刊
OPTICS EXPRESS
卷 20, 期 5, 页码 5652-5657出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.20.005652
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资金
- NRF
- MEST [2009-0069835, 2010-0011015]
- NRF of Korea [2011-0017494, 2011-0020405]
- National Research Council of Science & Technology (NST), Republic of Korea [2V0210] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2007-0057035, 2009-0069835, 2010-0011015, 2011-0017494] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We demonstrate a novel in-line saturable absorber based on hollow optical fiber (HOF) filled with graphene composite for high power operation of mode-locked fiber laser. Evanescent field of guided mode propagating in few centimeter-long HOF interacts with the graphene/polyvinyl acetate (PVAc) composite, which enables robust and efficient nonlinear absorption leading to stable passive mode-locking. The mode-locked fiber laser generates soliton pulses with 5.9-nm spectral bandwidth and its maximum output power is measured up to 80 mW. We also observe passive harmonic mode-locking of soliton laser delivering stable pulses with a repetition rate of 506.9 MHz at 33rd harmonics. (c) 2012 Optical Society of America
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