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Article Dans Une Revue IEEE Photonics Technology Letters Année : 2015

Brillouin Rectangular Optical Filter with Improved Selectivity and Noise Performance

Résumé

We demonstrate a high selectivity rectangular optical filter based on stimulated Brillouin scattering (SBS) effect in fiber with bandwidth from 1 GHz to 3 GHz. By using pump-splitting dual-stage configuration, the filter selectivity has been improved by ~15 dB without any distortion of the shape, which is well controlled by using precise digital feedback compensation and nonlinearity management. We also analyze the noise performance of both the single-stage and dual-stage filter by evaluating the signal-to-noise ratio of the amplified signal using coherent detection. The results show that for achieving higher selectivity and improved noise performance, the dual-stage approach performs better than the single-stage architecture. The inherent tuning flexibility with improved performance makes the proposed SBS filter one of the best candidates for microwave photonic applications.

Dates et versions

hal-01185851 , version 2 (21-08-2015)
hal-01185851 , version 1 (13-09-2019)

Identifiants

Citer

Wei Wei, Lilin Yi, Yves Jaouën, Michel Morvan, Weisheng Hu. Brillouin Rectangular Optical Filter with Improved Selectivity and Noise Performance. IEEE Photonics Technology Letters, 2015, 27 (15), pp.1593-1596. ⟨10.1109/LPT.2015.2432115⟩. ⟨hal-01185851v2⟩
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