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论文类型：期刊论文

发表时间：2014-07-01

发表刊物：MICROWAVE AND OPTICAL TECHNOLOGY LETTERS

收录刊物：SCIE、EI

卷号：56

期号：7

页面范围：1709-1711

ISSN号：0895-2477

关键字：modal interferometer; holey fiber; curvature; optical fiber sensor

摘要：An optical fiber curvature sensor based on holey fiber (HF) modal interferometer is demonstrated experimentally. The sensor is fabricated by a length of 2.4 cm HF which is spliced between two single mode fibers. Different resonant peaks have different curvature characteristics, and the sensitivity of 1.815 nm m(-1) is achieved in the range of 0-0.905 m(-1) for the peak around 1504 nm. The sensor is insensitive to the surrounding refractive index, so it is more suitable for index-insensitive wavelength-dependent curvature measurement. (c) 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1709-1711, 2014