Ring Cavity Erbium-Doped Fiber for Refractive Index Measurements

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Perez-Herrera, RA (Author) Other; Soares, L (Author) Other; Susana Silva (Author) FCUP; Frazao, O (Author) FCUP

Journal

Title: Sensors

Vol. 34

Final page: 9315

ISSN: 1424-3210

Publisher: MDPI

Other information

Authenticus ID: P-00X-HZG

DOI: 10.3390/s22239315

Abstract (EN): <jats:p>In this study, an interrogation system based on an erbium-doped fiber ring cavity for refractive index measurements is presented and experimentally demonstrated. This cavity ring includes a 1 × 3 coupler wherein one of the fiber output ports is used to increase the optical power of the system by means of an FBG used as a reflector. The other two output ports are used as a refractive index sensing head and reference port, respectively. An experimental demonstration of this proposed sensor system for the measurement of a distinct refractive index is presented.</jats:p>

Language: English

Type (Professor's evaluation): Scientific