期刊
OPTICS LETTERS
卷 34, 期 23, 页码 3683-3685出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.34.003683
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- Hong Kong Special Administrative Region Government through a GRF [PolyU5190/08E]
- Alexander von Humboldt Foundation
- Thuringian Ministry of Education and Cultural Affairs
- Foundation for the Author of National Excellent Doctoral Dissertation of China [200940]
We report the implementation of an in-fiber optical switch by means of filling a fluid into the air holes of a photonic crystal fiber with a fiber Bragg grating. Such a switch can turn on/off light transmission with an extinction ratio of up to 33 dB within a narrow wavelength range (Bragg wavelength) via a small temperature adjustment of +/-5 degrees C. The switching function is based on the temperature-dependent coupling between the fundamental core mode and the rod modes in the fluid-filled holes resulting from the thermo-optic effect of the filled fluid. (C) 2009 Optical Society of America
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