期刊
OPTICS LETTERS
卷 36, 期 16, 页码 3024-3026出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.36.003024
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- Hong Kong SAR government [PolyU 5298/10E]
- Hong Kong Polytechnic University [G-YX3R]
We demonstrate a nanosecond-pulse erbium-doped fiber laser that is passively mode locked by a hollow-core photonic crystal fiber filled with few-layered graphene oxide solution. Owing to the good solution processing capability of few-layered graphene oxide, which can be filled into the core of a hollow-core photonic crystal fiber through a selective hole filling process, a graphene saturable absorber can be successfully fabricated. The output pulses obtained have a center wavelength, pulse width, and repetition rate of 1561.2nm, 4.85 ns, and 7.68 MHz, respectively. This method provides a simple and efficient approach to integrate the graphene into the optical fiber system. (C) 2011 Optical Society of America
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