Journal
OPTICS EXPRESS
Volume 25, Issue 13, Pages 14900-14909Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.25.014900
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Funding
- National Natural Science Foundation of China [61108070, 61227011, 61378043, 61475114]
- National Instrumentation Program [2013YQ030915]
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We proposed and fabricated a tilted moire FBG (TMFBG), whose grating section was made up of two consecutive scribed TFBGs. By adjusting the Bragg wavelengths and the tilt angles of the two TFBGs, the two cladding mode combs of the transmission spectrum are non-overlapped. When the TMFBG was used for refractive index detection, its resolution can reach 2 x 10(-7) RIU, which is an order of magnitude higher than that of a single TFBG. And this result also has a good performance of temperature-insensitivity. (C) 2017 Optical Society of America
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