A Survivable Wavelength Division Multiplexing Passive Optical Network with Both Point-to-Point Service and Broadcast Service Delivery

Abstract

A survivable wavelength division multiplexing passive optical network enabling both point-to-point service and broadcast service is presented and demonstrated. This architecture provides an automatic traffic recovery against feeder and distribution fiber link failure, respectively. In addition, it also simplifies the protection design for multiple services transmission in wavelength division multiplexing passive optical networks.     

A Novel Wavelength Division Multiplexing Passive Optical Network Based on Self-Seeding Light Source and Doubling Wavelength-Utilized Rate

Abstract

A wavelength-utilized rate-doubled wavelength division multiplexing passive optical network based on a self-seeding light source is proposed. The effect of distributed fiber length and power division ratio on the upstream-signal power is analyzed; the result indicates that raising the power division ratio can increase the upstream-signal power when it is lower than 0.86. The power difference between upstream signals caused by the length difference of distributed fibers is also expanded with power division ratio; thus, the power division ratio should be decreased to a proper level to reduce the power difference when the length difference is too large.