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Optical Filter Design Using Background Wavelength Processing Techniques

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Abstract

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.

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Acknowledgments

This work was supported by FCT (CTS multi annual funding) through the PIDDAC Program funds and PTDC/EEA-ELC/111854/2009 and PTDC/EEA-ELC/120539/2010.

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Authors and Affiliations

  1. Electronics Telecommunication and Computer Dept. ISEL, R. Conselheiro Emídio Navarro, 1949-014, Lisbon, Portugal

    M. Vieira, M. A. Vieira, P. Louro & V. Silva

  2. CTS-UNINOVA, Quinta da Torre, Monte da Caparica, 2829-516, Caparica, Portugal

    M. Vieira, M. A. Vieira, P. Louro & V. Silva

  3. DEE-FCT-UNL, Quinta da Torre, Monte da Caparica, 2829-516, Caparica, Portugal

    M. Vieira

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  1. M. Vieira
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  2. M. A. Vieira
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  3. P. Louro
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  4. V. Silva
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Correspondence to M. Vieira.

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Vieira, M., Vieira, M.A., Louro, P. et al. Optical Filter Design Using Background Wavelength Processing Techniques. Plasmonics 8, 121–127 (2013). https://doi.org/10.1007/s11468-012-9434-5

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  • DOI: https://doi.org/10.1007/s11468-012-9434-5

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