Optical Transceiver Multiplexing for PON Integration
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Solution Overview
Problem
Existing PON network systems require additional slots on the OLT board and external WDMs to integrate low-latency mode signals with GPON and XGPON modes, leading to increased complexity and maintenance costs.
Innovation Solution
An optical transceiver device with an optical assembly and at least three transceiver modules, capable of performing multiplex and demultiplex processing on optical signals of multiple modes, eliminating the need for additional slots and external WDMs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional slots are added on the OLT board and external WDMs are used to integrate low-latency mode signals, then multiple optical signal modes can be integrated, but the system complexity and maintenance cost increase
Solution Approach 1:
The patent merges the multiplexing function directly into the optical transceiver device by integrating a multiplex filter and demultiplex filter within the device structure. This eliminates the need for separate external WDM devices and additional slots on the OLT board, thereby reducing system complexity while maintaining the ability to integrate multiple optical signal modes (GPON, XGPON, and low-latency modes).
Solution Approach 2:
The optical transceiver device is designed to perform multiple functions: it can handle multiple optical signal modes (GPON, XGPON, low-latency), perform multiplexing and demultiplexing operations, and interface with both the OLT board and external optical fibers. This multi-functional design eliminates the need for separate dedicated components for each function, reducing overall system complexity.
2Adaptability or versatility
If additional slots are added on the OLT board and external WDMs are used to integrate low-latency mode signals, then multiple optical signal modes can be integrated, but the maintenance cost increases
Solution Approach 1:
By consolidating the multiplexing and demultiplexing functions within the optical transceiver device itself, the patent reduces the number of separate components that require maintenance. The integrated multiplex filter and demultiplex filter eliminate the need for external WDM devices, thereby reducing maintenance scope and cost while preserving multi-mode integration capability.
3Adaptability or versatility
If additional slots are added on the OLT board and external WDMs are used to integrate low-latency mode signals, then multiple optical signal modes can be integrated, but the space resource occupation increases
Solution Approach 1:
The patent integrates the multiplexing and demultiplexing functionality directly into the optical transceiver device, eliminating the need for separate external WDM devices and additional slots on the OLT board. This consolidation significantly reduces the space required in the equipment room while maintaining the ability to support multiple optical signal modes.
Data Source
AI summary
The present disclosure provides an optical transceiver device including an optical assembly and at least three transceiver modules. The optical assembly has an optical fiber interface connected to an external optical fiber; each of the transceiver modules is configured to process an optical signal of a corresponding mode to send a downlink optical signal of the corresponding mode to the optical assembly, and receive an uplink optical signal of the corresponding mode provided by the optical assembly; the optical assembly is configured to perform multiplex processing on the downlink optical signal received to generate a downlink multiplexed optical signal and send it to the external optical fiber, and perform demultiplex processing on an uplink multiplexed optical signal received to obtain an optical signal of the corresponding mode of at least one of the transceiver modules. The present disclosure further provides an optical network system.