OPTICAL FIBER SENSORS

Wavelength multiplexing of frequency-based self-referenced fiber optic intensity sensors

[+] Author Affiliations
Jose´ M. Baptista

Instituto Superior de Engenharia do Porto, Departamento de Electrotecnia, Rua Dr. Anto´nio Bernardino de Almeida 431, 4200-072?Porto, Portugal

INESC Porto, Unidade de Optoelectro´nica e Sistemas Electro´nicos, Rua do Campo Alegre 687, 4169-007?Porto, Portugal

Silvia Abad

Universidad Pu´blica de Navarra, Departamento de Ingenieri´a Ele´ctrica y Ele´ctronica, Campus de Arrosadi´a s/n, E31006?Pamplona, Spain

Gaspar M. Rego

Escola Superior de Tecnologia e Gesta˜o, Instituto Polite´cnico de Viana de Castelo, Avenida do Atla?ntico, Apartado 574, 4901-908?Viana do Castelo, Portugal

INESC Porto, Unidade de Optoelectro´nica e Sistemas Electro´nicos, Rua do Campo Alegre 687, 4169-007?Porto, Portugal

Luı´s A. Ferreira, Francisco M. Arau´jo

Multiwave Networks Portugal, Lda., R. Eng. Frederico Ulrich 2650, 4470-605?Moreira da Maia, Portugal

Jose´ L. Santos

Universidade do Porto, Departamento de Fi´sica, Faculdade de Cie?ncias, Rua do Campo Alegre 687, 4169-007?Porto, Portugal

INESC Porto, Unidade de Optoelectro´nica e Sistemas Electro´nicos, Rua do Campo Alegre 687, 4169-007?Porto, Portugal

Armindo S. Lage

Universidade do Porto, Departamento de Engenharia Electrote´cnica e de Computadores, Faculdade de Engenharia, Rua Dr. Roberto Frias, s/n, 4200-465?Porto, Portugal

Opt. Eng. 43(3), 702-707 (Mar 01, 2004). doi:10.1117/1.1646177
History: Received Jun. 3, 2003; Revised Aug. 7, 2003; Accepted Sep. 12, 2003; Online March 12, 2004
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A new wavelength multiplexing configuration for self-referenced fiber optic intensity sensors using fiber Bragg gratings and wavelength division multiplexing (WDM) couplers is investigated. First, the network multiplexing concept is characterized, and then the self-referenced intensity sensor is presented, which is the basis of each individual sensor in the network. The implemented experimental setup of the multiplexing network is described, and results are presented considering the crosstalk, resolution, and power budget of the sensing multiplexing network. The characteristics and features of the configuration proposed are addressed. © 2004 Society of Photo-Optical Instrumentation Engineers.

© 2004 Society of Photo-Optical Instrumentation Engineers

Citation

Jose´ M. Baptista ; Silvia Abad ; Gaspar M. Rego ; Luı´s A. Ferreira ; Francisco M. Arau´jo, et al.
"Wavelength multiplexing of frequency-based self-referenced fiber optic intensity sensors", Opt. Eng. 43(3), 702-707 (Mar 01, 2004). ; http://dx.doi.org/10.1117/1.1646177


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