Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/2784
Título: Optical Filter Design Using Background Wavelength Processing Techniques
Autor: Vieira, Maria Manuela Almeida Carvalho
Vieira, Manuel Augusto
Louro, Paula
Silva, Vítor
Palavras-chave: Optical sensors
Short-pass long-pass and band-rejection pass filters
Optical bias control
WDM communication systems in the visible range
Data: Mar-2013
Editora: Springer
Citação: VIEIRA, M.; VIEIRA, M. A.; LOURO, P.; SILVA, V. - Optical Filter Design Using Background Wavelength Processing Techniques. Plasmonics. ISSN 1557-1955. Vol. 8, nr 1 (2013), p. 121-127.
Resumo: Amorphous SiC tandem heterostructures are used to filter a specific band, in the visible range. Experimental and simulated results are compared to validate the use of SiC multilayered structures in applications where gain compensation is needed or to attenuate unwanted wavelengths. Spectral response data acquired under different frequencies, optical wavelength control and side irradiations are analyzed. Transfer function characteristics are discussed. Color pulsed communication channels are transmitted together and the output signal analyzed under different background conditions. Results show that under controlled wavelength backgrounds, the device sensitivity is enhanced in a precise wavelength range and quenched in the others, tuning or suppressing a specific band. Depending on the background wavelength and irradiation side, the device acts either as a long-, a short-, or a band-rejection pass filter. An optoelectronic model supports the experimental results and gives insight on the physics of the device.
Peer review: yes
URI: http://hdl.handle.net/10400.21/2784
ISSN: 1557-1955
Aparece nas colecções:ISEL - Eng. Elect. Tel. Comp. - Comunicações

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