一种共享泵浦的自动增益控制的双路EDFA和ROADM结构
By using a dual-path EDFA structure with a shared pump source, the problems of high production cost and limited miniaturization of existing EDFAs are solved, and independent gain control and cost reduction of multiple EDFAs are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ACCELINK TECHNOLOGIES CO LTD
- Filing Date
- 2022-10-31
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, at least one pump source is required for each EDFA, which results in high production costs and limits the possibility of miniaturization of the device.
A dual-channel EDFA structure with shared pump and automatic gain control is adopted. The pump light from the common pump source is used to input the remaining pump light after the first EDFA into the second EDFA. The gain of the second EDFA is ensured by a wavelength division multiplexer and a filter. The controller adjusts the pump light power to achieve independent gain for each EDFA.
By sharing the pump source, the number of pump sources in a multi-EDFA environment is reduced, production costs are lowered, a foundation is laid for device miniaturization, and independent gain control of each EDFA is achieved.
Smart Images
Figure CN115622628B_ABST