Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/2236
Título: Semiconductor Device as Optical Demultiplexer for Short Range Optical Communications
Autor: Louro, Paula
Vieira, Maria Manuela Almeida Carvalho
Fernandes, Miguel
Vieira, Manuel Augusto
Costa, João
Fantoni, Alessandro
Palavras-chave: Wavelength division multiplexer
Multilayered structures
Data: Mai-2011
Editora: Amer Scientific Publishers
Citação: LOURO, P.; VIEIRA, M.; FERNANDES, M.; VIEIRA, M. A.; COSTA, J.; FANTONI, A. - Semiconductor Device as Optical Demultiplexer for Short Range Optical Communications. Journal of Nanoscience and Nanotechonolgy. ISSN 1533-4880. Vol. 11, n.º 6 (2011) p. 5318-5322.
Resumo: In this paper we present results on the use of a multilayered a-SiC:H heterostructure as a wavelength-division demultiplexing device for the visible light spectrum. The proposed device is composed of two stacked p-i-n photodiodes with intrinsic absorber regions adjusted to short and long wavelength absorption and carrier collection. An optoelectronic characterisation of the device was performed in the visible spectrum. Demonstration of the device functionality for WDM applications was done with three different input channels covering the long, the medium and the short wavelengths in the visible range. The recovery of the input channels is explained using the photocurrent spectral dependence on the applied voltage. An electrical model of the WDM device is proposed and supported by the solution of the respective circuit equations. Short range optical communications constitute the major application field, however other applications are also foreseen.
Peer review: yes
URI: http://hdl.handle.net/10400.21/2236
ISSN: 1533-4880
Aparece nas colecções:ISEL - Eng. Elect. Tel. Comp. - Artigos

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