Fabry-Perot Cavity Based on Hollow-Core Ring Photonic Crystal Fiber for Pressure Sensing

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Marta S Ferreira (Autor) Outra; Joerg Bierlich (Autor) Outra; Lehmann, H (Autor) Outra; Kay Schuster (Autor) Outra; Jens Kobelke (Autor) Outra; Jose Luis Santos (Autor) FCUP; Orlando Frazao (Autor) FCUP

Revista

Título: IEEE Photonics Technology Letters

Vol. 24

Páginas: 2122-2124

ISSN: 1041-1135

Editora: IEEE

Indexação

ISI Web of Knowledge - 12 Citações

Scopus - 15 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia electrotécnica, electrónica e informática

Outras Informações

ID Authenticus: P-002-2XD

DOI: 10.1109/lpt.2012.2222368

Abstract (EN): An interferometric Fabry-Perot cavity based on hollow-core ring photonic crystal fiber (HCR-PCF) for pressure sensing is proposed. The sensing head is formed by splicing a small section of HCR-PCF to standard single mode fiber. The spectral response depends on the cavity length due to the geometry of the HCR-PCF. The sensing head is subjected to methane pressure variations, where it exhibits a sensitivity of 0.82 nm/MPa. Its response to nitrogen pressure variation is also studied. The sensing head's intrinsic sensitivity to the nitrogen refractive index variations inside the hollow-core is also estimated. Finally, temperature measurement is performed and a sensitivity of 3.77 pm/degrees C is obtained for temperatures below 200 degrees C.

Idioma: Inglês

Tipo (Avaliação Docente): Científica