PHOTONIC ANALOGUE-TO-DIGITAL CONVERTER BASED ON WAVELENGTH DIVISION MULTIPLEXING TECHNIQUE

Tiago Alves, Adolfo Cartaxo

Abstract

A photonic (Ph) analogue-to-digital (ADC) converter architecture based on the wavelength division multiplexing (WDM) technique used to provide compressed spectrum of the ultra wideband radio signals that are being used in a given pico-cell area for monitoring purposes is presented. The signal at the different points of the WDM Ph-ADC architecture is analyzed and discussed in detail. The advantages/disadvantages of the WDM architecture are identified and compared with its time division multiplexing (TDM) counterpart. It is shown that the WDM Ph-ADC architecture provides adequate time stretching of the wireless signals captured in a given pico-cell. This system enables relaxing the bandwidth requirements of the electrical ADCs used to digitize the wireless signals prior digital signal processing is applied for spectrum and transceivers localization monitoring. In addition, it is concluded that the WDM Ph-ADC architecture supports higher pulse repetition rates than the TDM Ph-ADC architecture being of special interest when a fast up-date of the radio channel monitoring is required.

References

  1. Alves, T. and Cartaxo, A. (2011). SNR approach for performance evaluation of time-stretching photonic analogue to digital converter system. Optics Express, 19(2):1493-1509.
  2. Han, Y. and Jalali, B. (2003). Photonic time-stretched analogue-to-digital converter: fundamental concepts and pratical considerations. J. Lightwave Technol, 21(12):3085-3103.
  3. Llorente, R., Cartaxo, A., Ugen, B., Duplicy, J., Romme, J., Puche, J., Schmertz, D., Lostanlen, Y., Banales, R., and Marti, J. (2008). Management of UWB picocell clusters: UCELLS project approach. In Proceedings of the International Conference on Ultra-Wideband. IEEE.
  4. Llorente, R., Puche, M. M. J., Romme, J., and Alves, T. (2009). Sensing ultra-low-power radio signals by photonic analog-to-digital conversion. In Proceedings of the European Conference on Optical Communications.
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Paper Citation


in Harvard Style

Alves T. and Cartaxo A. (2011). PHOTONIC ANALOGUE-TO-DIGITAL CONVERTER BASED ON WAVELENGTH DIVISION MULTIPLEXING TECHNIQUE . In Proceedings of the International Conference on Data Communication Networking and Optical Communication System - Volume 1: OPTICS, (ICETE 2011) ISBN 978-989-8425-69-0, pages 111-120. DOI: 10.5220/0003551501110120


in Bibtex Style

@conference{optics11,
author={Tiago Alves and Adolfo Cartaxo},
title={PHOTONIC ANALOGUE-TO-DIGITAL CONVERTER BASED ON WAVELENGTH DIVISION MULTIPLEXING TECHNIQUE},
booktitle={Proceedings of the International Conference on Data Communication Networking and Optical Communication System - Volume 1: OPTICS, (ICETE 2011)},
year={2011},
pages={111-120},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003551501110120},
isbn={978-989-8425-69-0},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Data Communication Networking and Optical Communication System - Volume 1: OPTICS, (ICETE 2011)
TI - PHOTONIC ANALOGUE-TO-DIGITAL CONVERTER BASED ON WAVELENGTH DIVISION MULTIPLEXING TECHNIQUE
SN - 978-989-8425-69-0
AU - Alves T.
AU - Cartaxo A.
PY - 2011
SP - 111
EP - 120
DO - 10.5220/0003551501110120