一种基于动态热耦合矩阵的光模块多通道主动热补偿方法
By employing a dynamic thermal coupling matrix-based active thermal compensation method for multi-channel optical modules, the wavelength stability problem of multi-channel optical modules in high-density integration scenarios was solved. This method achieves precise control of wavelength offset and reliable high-speed data communication, meeting the stringent requirements of 800G/1.6T optical modules.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHENGDU GUANGCHUANGLIAN CO LTD
- Filing Date
- 2026-04-21
- Publication Date
- 2026-07-17
AI Technical Summary
In high-density integration scenarios, existing multi-channel optical modules suffer from mutual interference between single-channel compensation methods, resulting in poor wavelength stability and making it difficult to meet the stringent requirements of 800G/1.6T optical modules for wavelength stability and real-time performance.
An active thermal compensation method for multi-channel optical modules based on a dynamic thermal coupling matrix is adopted. By constructing a dynamic thermal coupling matrix, the thermal shock between channels is predicted in real time. A dynamic current change threshold is designed, and first-level, second-level, and third-level compensation are performed. Hardware floating-point units are used to accelerate the calculation, and a compensation coefficient lookup table is created to realize active decoupling and advance compensation of thermal coupling between channels.
It effectively suppressed wavelength offset overshoot, met the wavelength stability requirements of 800G/1.6T optical modules, reduced the bit error rate, improved the inter-channel crosstalk suppression ratio, ensured the integrity and reliability of high-speed data communication, and extended the service life of optical modules.
Smart Images
Figure CN122092963B_ABST