概率成形的未放大光学信令
By employing a probabilistic shaping 64QAM signaling architecture and coherent detection in optical networks within data centers, the limitations of channel number and spacing in optical networks are resolved, resulting in improved channel capacity and data rate while reducing power consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JUNIPER NETWORKS INC
- Filing Date
- 2021-09-13
- Publication Date
- 2026-07-17
AI Technical Summary
In optical networks within data centers, existing technologies struggle to increase the number of channels and reduce channel spacing to improve data rates without increasing network noise and inter-channel crosstalk, especially due to bandwidth limitations of optical amplifiers and the operating bandwidth limitations of conventional optical components.
The system employs a probabilistic 64QAM signaling architecture. By implementing probabilistic 64QAM signaling in the optical network within the data center, optical amplification is avoided. QAM symbols generated by probability distribution are transmitted in short-distance fiber optic links. Combined with coherent detection and a receiver design without dispersion compensation, inter-channel crosstalk is reduced and channel capacity is improved.
This technology enables the increase of the number of channels and the reduction of channel spacing in optical networks within data centers, thereby improving data rates, while simultaneously reducing power consumption, simplifying optical component design, and enhancing channel capacity and sensitivity performance.
Smart Images
Figure CN115941420B_ABST