Publications

Publications by CAP

1999

Research of the optical communications groups at University of Aveiro and Institute of Telecommunications - Aveiro pole

Authors
da Rocha, JF; Tavares, P; Frazao, O; Monteiro, P; Andre, PS; Teixeira, A; Lima, M; Pinto, AN; Gameiro, A; Ribeiro, R; Ribeiro, L; Cunha, A; Pinto, JL; Ferreira, MR; Pousa, M;

Publication
3RD IBEROAMERICAN OPTICS MEETING AND 6TH LATIN AMERICAN MEETING ON OPTICS, LASERS, AND THEIR APPLICATIONS

Abstract
This paper summarizes the research activities of the optical communications group at University of Aveiro and Institute of Telecommunications - Aveiro pole. Several activities like clock recovery systems, both electrical and all optical, electrical equalizers for very high bit rate DST systems, post-detection filters for multigigabit optical receivers, soliton systems, simulation work on WDM, DST, EDFA and short pulse generation for high bit rate systems are presented.

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1999

<title>Optical amplification in localized doping of Er:Ti:LiNbO3 waveguides</title>

Authors
de Almeida, JMMM; Leite, AMPP; Amin, J;

Publication
Rare-Earth-Doped Materials and Devices III

Abstract

1999

<title>Optical amplification in localized doping of Er:Ti:LiNbO3 waveguides</title>

Authors
de Almeida, JMMM; Leite, AMPP; Amin, J;

Publication
Rare-Earth-Doped Materials and Devices III

Abstract

1999

Optical amplification in localized doping Er : Ti : LiNbO3 waveguides

Authors
de Almeida, JMMM; Leite, AMPP; Amin, J;

Publication
RARE-EARTH-DOPED MATERIALS AND DEVICES III

Abstract
An investigation on optical amplification in Ti waveguides in LiNbO3 doped with Er ions by thermal diffusion of thin metallic stripes is presented. The possibility of fabricating efficient optical amplifiers in LiNbO3 substrates realized by localization of the dopant on surface areas of the crystals was theoretically evaluated and the feasibility of fabricating efficient amplifiers in such doped structures was experimentally verified. It was concluded that the localized doping technique allows optimization of amplifier performance through adjustment of the active region geometry to the mode intensity profile.

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1998

Comparison study of the Mach-Zehnder and Michelson topologies for resonant fiber optic intensity sensors

Authors
Baptista, JM; Santos, JL; Lage, AS;

Publication
OPTICAL AND FIBER OPTIC SENSOR SYSTEMS

Abstract
A theoretical and experimental study of the self-referencing resonant fiber optic intensity sensors based respectively on Michelson and Mach-Zehnder configurations is conducted. Sensor linearity and sensitivity are addressed, being also considered sensors design and optimization.

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1998

<title>Extended-range interrogation scheme for fibre Bragg grating sensors using a multimode laser diode</title>

Authors
Moreira, PJ; Ferreira, LAA; Santos, JL; Farahi, F;

Publication
European Workshop on Optical Fibre Sensors

Abstract