Honglin Ji, Lilin Yi, Lei Xue, Weisheng Hu. Upstream dispersion management of 25 Gb/s duobinary and PAM-4 signals to support 0–40 km differential reach[J]. Chinese Optics Letters, 2017, 15(2): 022502
- Chinese Optics Letters
- Vol. 15, Issue 2, 022502 (2017)
Fig. 1. Experimental setup.
Fig. 2. Frequency response of 10 G-class EML and PIN at BtB.
Fig. 3. Receiver performance of 25 Gb/s PAM-4 with and without ASE filter and 10 Gb/s NRZ with ASE filter.
Fig. 4. Upstream 25 Gb/s PAM-4 signal BER measurement with different positive (left) and negative (right) dispersion values in the BtB case.
Fig. 5. Upstream 25 Gb/s PAM-4 signal BtB sensitivity variations with dispersion.
Fig. 6. Eye diagrams of 25 Gb/s PAM-4 signal with and without − 500 ps / nm
Fig. 7. BER curves of 25 Gb/s PAM-4 signal in BtB, 20, 40 km fiber transmission cases.
Fig. 8. Receiver performances of 25 Gb/s EDB signal with and without ASE filter and 10 Gb/s NRZ with ASE filter.
Fig. 9. Upstream 25 Gb/s EDB signal BER measurement with different positive (left) and negative (right) dispersion values in the BtB case.
Fig. 10. Upstream 25 Gb/s EDB signal BtB sensitivity variations with dispersion.
Fig. 11. Eye diagrams of 25 Gb/s EDB signal with and without − 600 ps / nm
Fig. 12. BER curves of 25 Gb/s EDB signal in the BtB, 20, and 40 km fiber transmission cases.
Fig. 13. Upstream burst-mode timing sequences at (a) 1000 and (b) 100 ns/div.
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