Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/2967
Título: a-SiCH Based Devices as Optical Demultiplexers
Autor: Louro, Paula Maria Garcia
Vieira, Maria Manuela Almeida Carvalho
Costa, João
Vieira, Manuel Augusto
Fernandes, Miguel
Fantoni, Alessandro
Barata, Manuel Martins
Palavras-chave: a-SiCH based devices
Optical demultiplexers
Data: 2010
Editora: Materials Research Soc
Citação: LOURO, P.; VIEIRA, M.; COSTA, J.; VIEIRA, M. A.; FERNANDES, M.; FANTONI, A.; BARATA, M. - a-SiCH Based Devices as Optical Demultiplexers. B – Silicon Carbide 2010-Materials, Processing and Devices. ISSN 0272-9172. ISBN 978-1-60511-223-7. Vol. 1246 (2010).
Resumo: In this paper we present results on the use of a multilayered a-SiC:H heterostructure as a wavelength-division demultiplexing device (WDM) for the visible light spectrum. The WDM device is a glass/ITO/a-SiC:H (p-i-n)/ a-SiC:H(-p) /Si:H(-i)/SiC:H (-n)/ITO heterostructure in which the generated photocurrent at different values of the applied bias can be assigned to the different optical signals. The device was characterized through spectral response measurements, under different electrical bias. Demonstration of the device functionality for WDM applications was done with three different input channels covering wavelengths within the visible range. The recovery of the input channels is explained using the photocurrent spectral dependence on the applied voltage. The influence of the optical power density was also analysed. An electrical model, supported by a numerical simulation explains the device operation. Short range optical communications constitute the major application field, however other applications are also foreseen.
Peer review: yes
URI: http://hdl.handle.net/10400.21/2967
ISBN: 978-1-60511-223-7
ISSN: 0272-9172
Versão do Editor: http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=7955573
Aparece nas colecções:ISEL - Eng. Elect. Tel. Comp. - Comunicações

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