Based on semiconductor optical amplifier module, a novel multi-wavelength optical access network
with simple ONUs and feeder fiber protection is presented. By innovatively placing semiconductor optical
amplifier modules at the remote node, the optical network achieves the simplicity of ONUs and 10
Gbps symmetry downstream/upstream transmissions. On the other hand, by utilizing C+L bands in crossseeding
scheme, the band utilization of fibers is improved, the network scale is increased and the coherent
interference is eliminated. By using the design of feeder fiber with mutual protection, this structure has good
network robustness. By using DPSK orthogonal modulation technology, the system can provide broadcast
service. In the end, the system simulation proved that the system has good performance at 10Gbps. The reliability
performance meets the basic requirements of communication as well.
Keywords: C+L bands, distribution fiber, feeder fiber, mutable-protection function, optical access network,
semiconductor optical amplifier module.
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