Design of Flexible Multi-TWDM-PON System based on Arrayed Waveguide Grating

LU Hui; LIU Fengqing; ZHAO Xiangyu

doi:10.13756/j.gtxyj.2026.240146

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Design of Flexible Multi-TWDM-PON System based on Arrayed Waveguide Grating

更新时间：2026-03-03

- Design of Flexible Multi-TWDM-PON System based on Arrayed Waveguide Grating
- Study on Optical Communications Issue 1, (2026)
- 作者机构：
  
  南京邮电大学　电子与光学工程学院、柔性电子（未来技术）学院，南京　 210023
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2026.240146
  CLC： TN915.6
- Received：10 July 2024，
  
  Revised：2024-08-12，
  
  Published：10 February 2026
- 稿件说明：
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鹿辉，刘逢清，赵翔宇. 基于阵列波导光栅的灵活多TWDM-PON系统设计[J]. 光通信研究，2026(1): 240146.

Lu H, Liu F Q, Zhao X Y. Design of Flexible Multi-TWDM-PON System based on Arrayed Waveguide Grating[J]. Study on Optical Communications, 2026(1): 240146.
鹿辉，刘逢清，赵翔宇. 基于阵列波导光栅的灵活多TWDM-PON系统设计[J]. 光通信研究，2026(1): 240146. DOI： 10.13756/j.gtxyj.2026.240146.

Lu H, Liu F Q, Zhao X Y. Design of Flexible Multi-TWDM-PON System based on Arrayed Waveguide Grating[J]. Study on Optical Communications, 2026(1): 240146. DOI： 10.13756/j.gtxyj.2026.240146.

摘要

目的

为了解决目前时分波分光网络存在的负载不均衡、资源效率低、流量地域和时域分布周期性涨落导致的“潮汐效应”等问题，文章提出了基于阵列波导光栅（AWG）的灵活多时分波分复用（TWDM）-无源光网络（PON）系统方案。

方法

该系统结合固定与可调波长激光器，利用AWG的路由特性，根据网络负载实时调整各PON的分配带宽，在实现波长资源灵活分配的同时保持了光分配网络的无源性。

结果

系统实现了波长共享和资源的高效分配，能满足不同用户对带宽的多样化需求。仿真结果表明，在单波长传输速率为10 Gbit/s时，下行传输功率预算超过34 dB，并且最大传输距离为30 km时系统分支比可达1∶512。

结论

文章所提设计方案不仅能有效提升资源利用率、优化网络传输性能，还兼顾了系统部署经济性与可靠性，可适配4K/8K超高清视频和云计算等多样化高速业务需求，为下一代光接入网络应对流量分布不均问题提供了可行技术路径，具备良好的实际应用价值。

Abstract

Objective

To address the issues of load imbalance

low resource efficiency

the “tidal effect” of periodic fluctuations in traffic geography and time domain distribution in current time-wavelength division networks

this paper proposes a flexible Multi-Time Wavelength Division Multiplexing (TWDM)-Passive Optical Network (PON) scheme based on Arrayed Waveguide Grating (AWG).

Methods

This system combines fixed and tunable wavelength lasers

leveraging the routing characteristics of AWG to dynamically adjust the allocated bandwidth for each PON based on real-time network load

enabling flexible wavelength resource allocation while maintaining the passivity of the optical distribution network.

Results

The system achieves wavelength sharing and efficient resource allocation

catering to diverse bandwidth demands of different users. Simulation results show that with a single wavelength transmission rate of 10 Gbit/s

the downlink transmission power budget exceeds 34 dB

and the system split ratio can reach 1∶512 at a maximum transmission distance of 30 km. It is indicated that the design scheme proposed in this paper can not only effectively improve resource utilization and optimize network transmission performance

but also take into account the economy and reliability of system deployment.

Conclusion

It can adapt to the diverse high-speed service requirements such as 4K/8K ultra-high-definition video and cloud computing

which provides a feasible technical path for the next-generation optical access network to address the problem of uneven traffic distribution with good practical application value.

关键词

Keywords

references

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