2024-03-29T06:58:14Zhttps://repositori.uji.es/oai/requestoai:repositori.uji.es:10234/390112022-12-13T14:46:24Zcom_10234_43662com_10234_9col_10234_43643
Repositori UJI
author
Torres Company, Víctor
author
Lancis, Jesús
author
Andrés, Pedro
2012-05-28T14:36:45Z
2012-05-28T14:36:45Z
2008
Optics Communications, 281, 6, p. 1438-1444
304018
http://hdl.handle.net/10234/39011
http://dx.doi.org/10.1016/j.optcom.2007.11.048
A novel all-incoherent optical circuit that allows for band-pass microwave-photonic filter design is presented and verified through numerical simulation. In contrast to conventional spectrum-sliced optical architectures that operate on the basis of a finite number of discrete taps, our proposal is based on arbitrary shaping of the spectrum of the broadband optical source in a conventional frequency encoder. This fact dramatically increases the free spectral range of the filter with respect to the conventional discrete-time optical processing. The filter transfer function is given by the mutual coherence function of the filtered source which allows, through an inverse problem, sculpting the RF filter response. The effect of higher-order dispersion terms is also included by means of the optical coherence theory. Finally, some strategies are provided in order to alleviate the baseband resonance constraint. Numerical results are also included. © 2007 Elsevier B.V. All rights reserved.
eng
Optical signal processing
Optoelectronic devices
Flat-top ultra-wideband photonic filters based on mutual coherence function synthesis
info:eu-repo/semantics/article