Publications

Publications by Henrique Salgado

2004

<title>Measurement of the temperature of an optical fiber submitted to an electric arc discharge</title>

Authors
Rego, GM; Marques, PVS; Salgado, HM; Santos, JL;

Publication
Second European Workshop on Optical Fibre Sensors

Abstract

2004

<title>Simultaneous measurement of strain and temperature based on polarization loss properties of arc-induced long-period gratings</title>

Authors
Frazao, O; Rego, GM; Araujo, FM; Ferreira, LA; Salgado, HM; Santos, JL;

Publication
Second European Workshop on Optical Fibre Sensors

Abstract

2005

<title>Simultaneous temperature and strain measurement based on arc-induced long-period fiber gratings</title>

Authors
Rego, GM; Falate, R; Kalinowski, HJ; Fabris, JL; Marques, PV; Salgado, HM; Santos, JL;

Publication
17th International Conference on Optical Fibre Sensors

Abstract

2004

Evaluation of long-period fiber grating temperature sensors in nuclear environments

Authors
Fernandez, AF; Rego, G; Gusarov, A; Brichard, B; Santos, JL; Salgado, HM; Berghmans, F;

Publication
SECOND EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS: PROCEEDINGS

Abstract
We have studied the effect of gamma radiation on Long Period Fiber Grating (LPFG) temperature sensors fabricated in a pure-silica fiber, using the arc discharge technique. The temperature sensitivity of the LPFGs remains unchanged by the irradiation.

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2005

Low-loss splice in a microstructured fibre using a conventional fusion splicer

Authors
Frazao, O; Carvalho, JP; Salgado, HM;

Publication
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS

Abstract
A simple splice technique to fuse a SMF-28 (TM) and a microstructured fibre using a conventional electric-are splicer is presented. The technique consists in applying the electric arc in the SMF-28 (TM) region. The fusion-loss dependence with arc duration for constant fusion power is also investigated. A splice loss of 0.25 dB is obtained with high rtproducibility. (c) 2005 Wiley Periodicals, Inc.

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2003

Optical cross-connect based on tuneable FBG-OC with full scalability and bidirectionality

Authors
Frazao, O; Terroso, I; Carvalho, JP; Salgado, HM;

Publication
OPTICS COMMUNICATIONS

Abstract
We propose and demonstrate an architecture of a 2 x 2 port optical cross-connect (OXC) using tuneable fibre Bragg gratings and optical circulators. The proposed OXC is scalable to N x N ports owing to the cascadability of individual routing modules, which perform routing of specific wavelength channels. The performance of the cross-connect is also experimentally evaluated.

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