Remote curvature fiber sensors using core mismatch structures and OTDR based interrogation

• Type: Article in International Conference Proceedings Book
• Date: 2014

Authors

Fernandes, CS (Author) Other; Rocco Giraldi, MTMR (Author) Other; Gouveia, CJ (Author) Other; Sousa, MJ (Author) Other; Costa, JCWA (Author) Other; Frazao, O (Author) FCUP; Jorge, PAS (Author) FCUP

Conference proceedings International

Title: SECOND INTERNATIONAL CONFERENCE ON APPLICATIONS OF OPTICS AND PHOTONICS

2nd International Conference on Applications of Optics and Photonics

Aveiro, PORTUGAL, MAY 26-30, 2014

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Other information

Authenticus ID: P-00A-647

DOI: 10.1117/12.2063008

Abstract (EN): In this work, a remote curvature sensor using a standard OTDR as the interrogation system is presented. This approach uses a core diameter mismatch sensor which is formed by a short section of a multimode fiber, with a length of 3 mm, sandwiched between two singlemode fibers. In this case, the attenuation of the optical signal will vary as the fiber is bent allowing interrogating the sensor with OTDR technology. Preliminary results indicate a resolution range of similar to 0.0003 cm(-1), sensitivity in the range of similar to-208.46 dB/cm(-1) and a variation of 2.67 dB in the OTDR trace within the bend radius range.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4