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论文类型：期刊论文

发表时间：2008-11-01

发表刊物：IEEE PHOTONICS TECHNOLOGY LETTERS

收录刊物：SCIE、EI、Scopus

卷号：20

期号：21-24

页面范围：1980-1982

ISSN号：1041-1135

关键字：Fiber Bragg gratings (FBGs); fiber-optic sensors; photonic crystal fibers (PCFs); polarization-maintaining (PM); pure silica

摘要：Fiber Bragg gratings in pure-silica polarization-maintaining photonic crystal fiber were photowritten by use of two-photon ultraviolet excitation and characterized for their responses to temperature, axial strain, and hydrostatic pressure. The two resonance wavelengths corresponding to the two polarization axes show the same response to temperature and axial strain but different response to hydrostatic pressure. The differential pressure sensitivity is independent of temperature.