Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-29T13:29:56.739Z Has data issue: false hasContentIssue false
  • English
  • Français

Optoelectronic logic functions using optical bias controlled SiC multilayer devices

Published online by Cambridge University Press:  03 June 2013

M. A. Vieira ,
M. Vieira ,
V. Silva ,
P. Louro  and
M. Barata
M. A. Vieira
Affiliation:
Electronics Telecommunication and Computer Dept. ISEL, R. Conselheiro Emídio Navarro, 1949-014 Lisboa, Portugal Tel: +351 21 8317290, Fax: +351 21 8317114, mv@isel.ipl.pt; CTS-UNINOVA, Quinta da Torre, Monte da Caparica, 2829-516, A, Portugal.
M. Vieira
Affiliation:
Electronics Telecommunication and Computer Dept. ISEL, R. Conselheiro Emídio Navarro, 1949-014 Lisboa, Portugal Tel: +351 21 8317290, Fax: +351 21 8317114, mv@isel.ipl.pt; CTS-UNINOVA, Quinta da Torre, Monte da Caparica, 2829-516, A, Portugal. DEE-FCT-UNL, Quinta da Torre, Monte da Caparica, 2829-516, Caparica, Portugal
V. Silva
Affiliation:
Electronics Telecommunication and Computer Dept. ISEL, R. Conselheiro Emídio Navarro, 1949-014 Lisboa, Portugal Tel: +351 21 8317290, Fax: +351 21 8317114, mv@isel.ipl.pt; CTS-UNINOVA, Quinta da Torre, Monte da Caparica, 2829-516, A, Portugal.
P. Louro
Affiliation:
Electronics Telecommunication and Computer Dept. ISEL, R. Conselheiro Emídio Navarro, 1949-014 Lisboa, Portugal Tel: +351 21 8317290, Fax: +351 21 8317114, mv@isel.ipl.pt; CTS-UNINOVA, Quinta da Torre, Monte da Caparica, 2829-516, A, Portugal.
M. Barata
Affiliation:
Electronics Telecommunication and Computer Dept. ISEL, R. Conselheiro Emídio Navarro, 1949-014 Lisboa, Portugal Tel: +351 21 8317290, Fax: +351 21 8317114, mv@isel.ipl.pt; CTS-UNINOVA, Quinta da Torre, Monte da Caparica, 2829-516, A, Portugal.
Get access

Abstract

The purpose of this paper is the design of simple combinational optoelectronic circuit based on SiC technology, able to act simultaneously as a 4-bit binary encoder or a binary decoder in a 4-to-16 line configurations. The 4-bit binary encoder takes all the data inputs, one by one, and converts them to a single encoded output. The binary decoder decodes a binary input pattern to a decimal output code.

The optoelectronic circuit is realized using a a-SiC:H double pin/pin photodetector with two front and back optical gates activated trough steady state violet background. Four red, green, blue and violet input channels impinge on the device at different bit sequences allowing 16 possible inputs. The device selects, through the violet background, one of the sixteen possible input logic signals and sends it to the output.

Results show that the device acts as a reconfigurable active filter and allows optical switching and optoelectronic logic functions development. A relationship between the optical inputs and the corresponding digital output levels is established. A binary color weighted code that takes into account the specific weights assigned to each bit position establish the optoelectronic functions. A truth table of an encoder that performs 16-to-1 multiplexer (MUX) function is presented.

Keywords

amorphoussensoroptoelectronic
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1536: Symposium A – Film Silicon Science and Technology , 2013 , pp. 91 - 96
Copyright
Copyright © Materials Research Society 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Petit, C., Blaser, M., Workshop on Optical Components for Broadband Communication, ed. by Fonjallaz, Pierre-Yves, Pearsall, Thomas P., Proc. of SPIE Vol. 6350, 63500I, (2006).Google Scholar
Ibrahim, S., Luo, L. W., Djordjevic, S. S., Poitras, C. B., Zhou, I., Fontaine, N. K., Guan, B., Ding, Z., Okamoto, K., Lipson, M., and Yoo, S. J. B., paper OWJ5. Optical Fiber Communications Conference, OSA/OFC/NFOEC, San Diego, 21 Mar 2010.Google Scholar
Vieira, M.A., Louro, P., Vieira, M., Fantoni, A., Steiger-Garção, A.. IEEE sensor jornal, Vol. 12, NO. 6, (2012) pp. 1755–1762.CrossRefGoogle Scholar
Vieira, M.A., Vieira, M., Louro, P., Silva, V., A., Applied Surface Science, DOI: 10.1016/j.apsusc.2013.01.020.CrossRefGoogle Scholar
Randel, S., Koonen, A.M.J., Lee, S.C.J., Breyer, F., Garcia Larrode, M., Yang, J., Ng'Oma, A., Rijckenberg, G.J, and Boom, H.P.A... “ECOC 07 (Th 4.1.4). (pp. 1–4). Berlin, Germany, 2007.Google Scholar
Vieira, M., Louro, P., Fernandes, M., Vieira, M. A., Fantoni, A. and Costa, J. InTech, Chap.19, pp:403–425 (2011).Google Scholar
Vieira, M., Fantoni, A., Louro, P., Fernandes, M., Schwarz, R., Lavareda, G., and Carvalho, C. N., Vacuum, 82, Issue 12, 8 August 2008, pp: 1512–1516.CrossRefGoogle Scholar