Microcavity Tip Temperature Sensor based on Post-Processing

• Type: Article in International Conference Proceedings Book
• Date: 2013

Authors

Marta S Ferreira (Author) Other; Joerg Bierlich (Author) Other; Kay Schuster (Author) Other; Jose L Santos (Author) FCUP; Orlando Frazao (Author) FCUP

Conference proceedings International

Title: FIFTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS

5th European Workshop on Optical Fibre Sensors

Krakow, POLAND, MAY 19-22, 2013

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Scientific classification

FOS: Engineering and technology > Environmental engineering

Other information

Authenticus ID: P-006-FTP

DOI: 10.1117/12.2026105

Abstract (EN): A Fabry-Perot microcavity tip temperature sensor based on a special design double-cladding optical fiber is proposed. The produced fiber has pure silica core and outer cladding and a silica ring doped with phosphorous. The whole ring region is removed by chemical etching post-processing. Consequently, light will be guided in the core region. In a first step, the double-cladding optical fiber is spliced to single mode fiber. Afterwards, the tip is etched in a solution of 48% hydrofluoric acid. The inner cladding will be etched faster, and the core becomes suspended and surrounded by air. The Fabry-Perot microcavity tip sensor is subjected to temperature, and a linear sensitivity of 14.6 pm/degrees C is obtained.

Language: English

Type (Professor's evaluation): Scientific