Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 27, Issue 15, Pages 1593-1596Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2015.2432115
Keywords
Rectangular optical filter; microwave photonic filter; high selectivity; stimulated Brillouin scattering
Funding
- National Basic Research Program of China [2012CB315602]
- Program of Excellent Ph.D. in China [201155]
- Futur et Ruptures Program through the Institut Telecom of France
- National Natural Science Foundation of China [61132004, 61322507]
Ask authors/readers for more resources
We demonstrate a high selectivity rectangular optical filter based on stimulated Brillouin scattering (SBS) effect in fiber with bandwidth from 1 to 3 GHz. By using pump-splitting dual-stage configuration, the filter selectivity has been improved by more than 16 dB and exceeded 40 dB within 2-GHz bandwidth. The filter shape 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 filters by evaluating the signal-to-noise ratio of the amplified signal using coherent detection. The results show that the dual-stage approach performs better than the single-stage architecture in achieving higher selectivity and improving noise performance. The inherent tuning flexibility with improved performance makes the proposed SBS filter one of the best candidates for microwave photonic applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available