TY - JOUR
T1 - System Performance Optimization of Frequency-Swept Pump-Based Rectangular Brillouin Optical Filter
AU - Shi, M.
AU - Yi, L.
AU - Wei, W.
AU - Pu, G.
AU - Hu, W.
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2017/2
Y1 - 2017/2
N2 - In this paper, we realize a series of 2-GHz wide rectangular optical filters based on the stimulated Brillouin scattering (SBS) effect in optical fiber with a frequency-swept pump and gain feedback compensation scheme. The frequency sweep pump period is a key parameter to achieve acceptable signal performance in the frequency-swept pump based SBS gain filter. We evaluate the system performance of the signal, which is fed into the SBS filter based on frequency-swept pump with different sweep periods ranging from 0.1 to 100 μs, in terms of eye diagrams and bit-error rate (BER) after 12.5 and 25 km of fiber transmission, respectively. Both 500-Mb/s and 1-Gb/s on-off-keying (OOK) signals are used for real-time signal quality evaluation. The optimum eye diagram and BER performance are achieved after 25 km transmission under a 1 μs frequency sweep pump period, as well as after 12.5-km transmission under a 0.5 μs sweep period. The experimental results show that the optimal frequency sweep pump period is always around 1/120 of the signal propagation time in the fiber for different transmission length, providing a guideline on the design of the frequency-swept pump based SBS gain filter and its applications.
AB - In this paper, we realize a series of 2-GHz wide rectangular optical filters based on the stimulated Brillouin scattering (SBS) effect in optical fiber with a frequency-swept pump and gain feedback compensation scheme. The frequency sweep pump period is a key parameter to achieve acceptable signal performance in the frequency-swept pump based SBS gain filter. We evaluate the system performance of the signal, which is fed into the SBS filter based on frequency-swept pump with different sweep periods ranging from 0.1 to 100 μs, in terms of eye diagrams and bit-error rate (BER) after 12.5 and 25 km of fiber transmission, respectively. Both 500-Mb/s and 1-Gb/s on-off-keying (OOK) signals are used for real-time signal quality evaluation. The optimum eye diagram and BER performance are achieved after 25 km transmission under a 1 μs frequency sweep pump period, as well as after 12.5-km transmission under a 0.5 μs sweep period. The experimental results show that the optimal frequency sweep pump period is always around 1/120 of the signal propagation time in the fiber for different transmission length, providing a guideline on the design of the frequency-swept pump based SBS gain filter and its applications.
KW - Rectangular optical filter
KW - Stimulated Brillouin scattering (SBS)
KW - frequency sweep
KW - microwave photonic filter
UR - https://www.scopus.com/pages/publications/85009065189
U2 - 10.1109/JPHOT.2016.2639780
DO - 10.1109/JPHOT.2016.2639780
M3 - Article
AN - SCOPUS:85009065189
SN - 1943-0655
VL - 9
JO - IEEE Photonics Journal
JF - IEEE Photonics Journal
IS - 1
M1 - 7782775
ER -