All-fiber Mach-Zehnder curvature sensor based on multimode interference combined with a long-period grating

• Type: Article in International Scientific Journal
• Date: 2007

Authors

Frazao, O (Author) Other; Viegas, J (Author) Other; Caldas, P (Author) Other; Santos, JL (Author) FCUP; Araujo, FM (Author) Other; Ferreira, LA (Author) Other; Farahi, F (Author) Other

Journal

Title: Optics Letters

Vol. 32

Pages: 3074-3076

ISSN: 0146-9592

Publisher: Optical Society of America

Indexing

ISI Web of Knowledge - 131 Citations

Scopus - 149 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-004-6MW

DOI: 10.1364/ol.32.003074

Abstract (EN): A novel Mach-Zehnder interferometer based on a fiber multimode interference structure combined with a long-period fiber grating (LPG) is proposed. The multimode interference is achieved through the use of a MMF section spliced between two single-mode fibers, with a length adjusted to couple a fraction of light into the cladding modes. A LPG placed after the MMF couples light back into the fiber core, completing the Mach-Zehnder interferometer. This novel configuration was demonstrated as a bending sensor. (c) 2007 Optical Society ofAmerica.

Language: English

Type (Professor's evaluation): Scientific