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首页> 外文期刊>Journal of Lightwave Technology >Novel schemes for local area network emulation in passive optical networks with RF subcarrier multiplexed customer traffic
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Novel schemes for local area network emulation in passive optical networks with RF subcarrier multiplexed customer traffic

机译：具有RF子载波复用的客户业务量的无源光网络中局域网仿真的新方案

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摘要

This paper proposes two novel optical layer schemes for intercommunication between customers in a passive optical network (PON). The proposed schemes use radio frequency (RF) subcarrier multiplexed transmission for intercommunication between customers in conjunction with upstream access to the central office (CO) at baseband. One scheme employs a narrowband fiber Bragg grating (FBG) placed close to the star coupler in the feeder fiber of the PON, while the other uses an additional short-length distribution fiber from the star coupler to each customer unit for the redirection of customer traffic. In both schemes, only one optical transmitter is required at each optical network unit (ONU) for the transmission of customer traffic and upstream access traffic. Moreover, downstream bandwidth is not consumed by customer traffic unlike in previously reported techniques. The authors experimentally verify the feasibility of both schemes with 1.25 Gb/s upstream baseband transmission to the CO and 155 Mb/s customer data transmission on the RF carrier. The experimental results obtained from both schemes are compared, and the power budgets are calculated to analyze the scalability of each scheme. Further, the proposed schemes were discussed in terms of upgradability of the transmission bit rates for the upstream access traffic, bandwidth requirements at the customer premises, dispersion tolerance, and stability issues for the practical implementations of the network.
机译：本文提出了两种新颖的光层方案，用于无源光网络（PON）中客户之间的互通。所提出的方案使用射频（RF）子载波多路复用传输来实现客户之间的互通，并与基带上对中心局（CO）的上游访问相结合。一种方案是将窄带光纤布拉格光栅（FBG）放置在PON的馈线光纤中靠近星形耦合器的位置，另一种方案是使用从星形耦合器到每个客户单元的另一条短长度分布光纤，以重定向客户流量。 。在这两种方案中，每个光网络单元（ONU）都只需要一个光发射机即可传输客户业务和上游接入业务。此外，与以前报道的技术不同，客户流量不会消耗下游带宽。作者通过实验验证了两种方案的可行性，即向CO的1.25 Gb / s上游基带传输和在RF载波上的155 Mb / s客户数据传输。比较从两种方案获得的实验结果，并计算功率预算以分析每种方案的可扩展性。此外，针对上行接入业务的传输比特率的可升级性，客户驻地的带宽要求，色散容限以及网络实际实施的稳定性问题，对所提出的方案进行了讨论。

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