Characterization of optical fiber long period grating refractometer with nanocoating

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Simoes, E (Author) Other; Abe, I (Author) Other; Oliveira, J (Author) Other; Frazao, O (Author) FCUP; Caldas, P (Author) Other; Pinto, JL (Author) Other

Journal

Title: Sensors and Actuators, B: Chemical

Vol. 153

Pages: 335-339

ISSN: 0925-4005

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 24 Citations

Scopus - 32 Citations

Other information

Authenticus ID: P-002-SC4

DOI: 10.1016/j.snb.2010.10.033

Abstract (EN): In this work is studied the response of optical fiber long period grating (LPG) to changes of the refractive index of the external media relatively to variations of wavelength and in transmission. The response of the LPG to refractive index greater and lesser than to cladding is investigated. A nanolayer was deposited onto the fiber to increase the sensitivity of the LPG to refractive index of the external media higher than cladding. The film modifies the rates of effective modes of cladding, thus improving the response of the changes in the refractive index of the external media higher than that in the refractive index of the cladding (n(cl) approximate to 1.457). The Langmuir-Blodgett technique was used for the deposition of the nanolayer.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5