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Demonstration of incoherent microwave photonic filters with all-optical complex coefficients

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4 Author(s)
Loayssa, A. ; Dept. of Electr. & Electron. Eng., Univ. Publica de Navarra, Pamplona ; Capmany, J. ; Sagues, M. ; Mora, J.

We propose and demonstrate for the first time to our knowledge an incoherent microwave photonic filter with complex coefficients implemented in the optical domain. The system is based on a tunable optically induced RF phase-shift that is obtained by means of a novel optical signal processing technique that makes combined use of optical single-sideband modulation and stimulated Brillouin scattering. A two-tap filter is built demonstrating full tunability of its frequency response by dynamically changing the phase shift of a complex coefficient

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 16 )