一种振幅响应平坦的可调硅基色散补偿器件
By designing a silicon-based dispersion compensation device on a silicon-based platform, which cascades a micro-ring resonator with adjustable coupling coefficient and a coupler with adjustable splitting ratio using a Mach-Zehnder interferometer, the problems of large size and non-adjustability of traditional dispersion compensation devices are solved. This achieves high-precision control of dispersion and bandwidth, ensuring signal recovery quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING INNOVATION CENTER OF BEIJING INSTITUTE OF TECHNOLOGY
- Filing Date
- 2023-09-07
- Publication Date
- 2026-07-17
AI Technical Summary
In existing optical fiber communication systems, traditional dispersion compensation devices suffer from problems such as large size, high insertion loss, non-adjustable dispersion, or high cost, making it difficult to achieve high-precision dispersion management.
A tunable silicon-based dispersion compensation device with flat amplitude response was designed. It adopts a cascaded structure of a micro-ring resonator with adjustable coupling coefficient, a coupler with adjustable splitting ratio, and a Sagnac ring reflector loaded by a Mach-Zehnder interferometer. The coupling coefficient and splitting ratio of the device are adjusted by micro-nano metal heating electrodes, so as to achieve flexible control of the device's center frequency, dispersion, and bandwidth.
It achieves high-precision dispersion adjustment and wide-bandwidth adjustment without increasing device size and power consumption, ensuring that signal recovery quality is not affected, and is suitable for high-precision dispersion control scenarios.
Smart Images
Figure CN117250695B_ABST