Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/3002
Título: Direct Color Sensor, Optical Amplifier and Demux Device Integrated on a Single Monolithic SiC Photodetector
Autor: Vieira, Maria Manuela Almeida Carvalho
Louro, Paula
Vieira, Manuel Augusto
Costa, João
Fernandes, Miguel
Palavras-chave: Optical sensors
Wavelength division multiplexing-demultiplexing
Electrical simulation
Optical communications
Data: 2010
Editora: Elsevier Science BV
Citação: VIEIRA, M.; LOURO, P.; VIEIRA, M. A.; COSTA, J.; FERNANDES, M. - Direct Color Sensor, Optical Amplifier and Demux Device Integrated on a Single Monolithic SiC Photodetector. Eurosensors XXIV Conference. ISSN 1877-7058. Vol. 5 (2012), p. 232-235.
Resumo: A pi'n/pin a-SiC:H voltage and optical bias controlled device is presented and its behavior as image and color sensor, optical amplifier and demux device is discussed. The design and the light source properties are correlated with the sensor output characteristics. Different readout techniques are used. When a low power monochromatic scanner readout the generated carriers the transducer recognizes a color pattern projected on it acting as a direct color and image sensor. Scan speeds up to 10(4) lines per second are achieved without degradation in the resolution. If the photocurrent generated by different monochromatic pulsed channels is readout directly, the information is demultiplexed. Results show that it is possible to decode the information from three simultaneous color channels without bit errors at bit rates per channel higher than 4000 bps. Finally, when triggered by light of appropriated wavelength, it can amplify or suppress the generated photocurrent working as an optical amplifier (C) 2009 Published by Elsevier Ltd.
Peer review: no
URI: http://hdl.handle.net/10400.21/3002
ISSN: 1877-7058
Versão do Editor: http://ac.els-cdn.com/S1877705810006375/1-s2.0-S1877705810006375-main.pdf?_tid=ca254438-58ec-11e3-8678-00000aacb35f&acdnat=1385726158_4097504b50e1999491790964e9b92d9b
Aparece nas colecções:ISEL - Eng. Elect. Tel. Comp. - Comunicações

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