A hybrid Fabry-Perot/Michelson interferometer sensor using a dual asymmetric core microstructured fiber

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Frazao, O (Author) FCUP; Silva, SF (Author) FCUP; Viegas, J (Author) Other; Baptista, JM (Author) Other; Santos, JL (Author) FCUP; Roy, P (Author) Other

Journal

Title: Measurement Science and Technology

Vol. 21 No. 2

Final page: 025205

ISSN: 0957-0233

Publisher: Institute of Physics Publishing

Indexing

ISI Web of Knowledge - 16 Citations

ISI Web of Science

Scopus - 19 Citations

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

Other information

Authenticus ID: P-003-9GV

DOI: 10.1088/0957-0233/21/2/025205

Abstract (EN): A hybrid Fabry-Perot/Michelson interferometer sensor using a dual asymmetric core microstructured fiber is demonstrated. The hybrid interferometer presents three waves. Two parallel Fabry-Perot cavities with low finesse are formed between the splice region and the end of a dual-core microstructured fiber. A Michelson configuration is obtained by the two small cores of the microstructured fiber. The spectral response of the hybrid interferometer presents two pattern fringes with different frequencies due to the respective optical path interferometers. The hybrid interferometer was characterized in strain and temperature presenting different sensitivity coefficients for each topology. Due to these characteristics, this novel sensing head is able to measure strain and temperature, simultaneously.

Language: English

Type (Professor's evaluation): Scientific