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Integrated structure for dual role: measuring the fibre – guide coupling losses and sensing the external medium variations

F. REHOUMA1, K. E. AIADI1,* , M. T. MEFTAH1

Affiliation

  1. Lenrenza Laboratory, University of Ouargla, 30000 Ouargla, Algeria

Abstract

A special structure using a selective buried waveguide is realised by ion-exchange technology. The structure can be used to measure the fibre – guide coupling losses and to detect some external parameter variations. Each extremity of this structure is connected to an optical fibre. In this compatible connection, the coupling fibre – guide losses is less than 0.5 dB. The structure has a non buried part, which is sensitive to any external physical or chemical effect. Using amplitude modulation, a temperature variation is tested with this structure. In range of 20° - 40°, the sensor dynamic is 13 dB. The general structure presents low total insertion losses, - 9 dB..

Keywords

Integrated ion-exchange waveguide, Integrated optical sensors, Evanescent wave.

Submitted at: Aug. 23, 2006
Accepted at: Sept. 13, 2006

Citation

F. REHOUMA, K. E. AIADI, M. T. MEFTAH, Integrated structure for dual role: measuring the fibre – guide coupling losses and sensing the external medium variations, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 5, pp. 1915-1917 (2006)