Chinese Optics Letters, 2016, 14 (8): 081901, Published Online: Aug. 3, 2018
Extracting signal via stochastic resonance in the semiconductor optical amplifier Download: 898次
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Fig. 2. Optical bistable hysteresis in the SOA with α = 20 cm − 1 , η = 0.75 , g 0 = 280 cm − 1 , L = 300 μm , b = 2 , φ 0 = π 4 , and R = 0.3 .
Fig. 3. Bistable output characteristics with different system parameters of the SOA: (a) b = 3 , φ 0 = π 4 , R = 0.3 , and L = 100 μm (red), 200 μm (green), 300 μm (blue), and 400 μm (black); (b) L = 300 μm , b = 3 , φ 0 = π 4 , and R = 0.1 (red), 0.2 (green), 0.3 (blue), and 0.4 (black).
Fig. 4. Bistability characteristics with different parameters: (a) R = 0.3 , L = 300 μm , b = 3 , and φ 0 = 0 (red), π 4 (green), π 3 (blue), and π 2 (black); (b) R = 0.3 , L = 300 μm , φ 0 = π 4 , and b = 1.5 (red), 2 (green), 3 (blue), and 4 (black).
Fig. 5. Transmission properties of the stochastic resonance system with increasing noise intensities. (a)–(d) input signals S 0 = 0.5 MW / cm 2 with noise, in which normalized noise intensities D are 0 ∶ 1 , 1 ∶ 1 , 5 ∶ 1 , and 10 ∶ 1 , respectively; (a′)–(d′) the corresponding output signals through the stochastic resonance system with parameters L = 300 μm , R = 0.3 , φ 0 = π 4 , and b = 3 .
Wulong Zhao, Hongjun Liu, Qibing Sun, Nan Huang, Zhaolu Wang, Jing Han, Heng Sun. Extracting signal via stochastic resonance in the semiconductor optical amplifier[J]. Chinese Optics Letters, 2016, 14(8): 081901.