Controlling the Sensitivity of Refractive Index Measurement Using a Tapered Fiber Loop Mirror

• Tipo: Artigo em Revista Científica Internacional
• Data: 2011

Autores

Zibaii, MI (Autor) Outra; Frazao, O (Autor) FCUP; Jorge, PAS (Autor) FCUP; Zibaii, MI (Autor) Outra; Latifi, H (Autor) Outra

Revista

Título: IEEE Photonics Technology Letters

Vol. 23

Páginas: 1219-1221

ISSN: 1041-1135

Editora: IEEE

Indexação

ISI Web of Knowledge - 24 Citações

Scopus - 27 Citações

Outras Informações

ID Authenticus: P-002-NGH

DOI: 10.1109/lpt.2011.2158641

Abstract (EN): A single-mode nonadiabatic tapered optical fiber (NATOF) sensor was inserted into a fiber loop mirror (FLM) enabling us to tune its sensitivity towards refractive index (RI). The NATOF was fabricated by the heat pulling method, utilizing a CO laser. The adjustment of the polarization controllers (PCs) inserted in loop allowed us to excite different cladding modes in the interferometric taper resulting in different optical paths for the clockwise and the counterclockwise beams. By variation of the PCs' settings, the sensitivity of the sensor for RI in the range from 1.3380 to 1.3510 could be tuned from 876.24 to 1233.07 nm/RIU. Experimental results show that the sensitivity to the external RI increased with the order of the cladding mode.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 3