Pressure and temperature characterization of two interferometric configurations based on suspended-core fibers

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

Autores

Aref, SH (Autor) Outra; Zibaii, MI (Autor) Outra; Kheiri, M (Autor) Outra; Porbeyram, H (Autor) Outra; Latifi, H (Autor) Outra; Araujo, FM (Autor) Outra; Ferreira, LA (Autor) Outra; Santos, JL (Autor) FCUP; Kobelke, J (Autor) Outra; Schuster, K (Autor) Outra; Frazao, O (Autor) FCUP

Revista

Título: Optics Communications

Vol. 285

Páginas: 269-273

ISSN: 0030-4018

Editora: Elsevier

Indexação

ISI Web of Knowledge - 12 Citações

Scopus - 17 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-002-DR7

DOI: 10.1016/j.optcom.2011.09.040

Abstract (EN): In this work, two all-fiber interferometric configurations based on suspended core fibers (SCF) are investigated. A Fabry-Perot cavity (FPC) made of SCF spliced in-between segments of single-mode and hollow-core fiber is proposed. The interferometric signals are generated by the refractive-index mismatches between the two fibers in the splice region and at the end of the suspended-core fiber. An alternative sensing head configuration formed by the insertion of a length of SCF as a birefringence element in a Sagnac loop interferometer is also demonstrated. In this structure, the interferometric signals are generated by interfering two counter propagating beams with different polarization states which propagate through a length of SCF as a birefringence element. The sensitivity to pressure and temperature was determined for both configurations. The results show that the pressure sensitivities are -4.68 x 10(-5) nm/psi and 0.032 nm/psi for FPC and Sagnac loop interferometers, respectively. The temperature sensitivity of both structures has been obtained and the results have been discussed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica