Research on High-Precision Astronomical Spectral Calibration Light Source System and Remote-Control Technology
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Abstract:
Fiber femtosecond optical frequency combs (OFCs) play a crucial role in achieving high-precision astronomical spectral calibration in the field of astronomy[1,2]. However, OFCs generated by lasers are susceptible to disturbances from environmental factors and internal vibrations, leading to frequency drift and decreased stability[3,4]. To address these, We develop a closed-loop servo control system utilizing error signals between the OFC and microwave frequency reference to stabilize the frequency. Then we design a remote-control component of the system, enabling real-time monitoring and precise control of the OFC. The results demonstrate that the system we designed not only achieves precise synchronization of the OFC’s carrier-envelope offset frequency with the microwave frequency reference, but also maintains long-term stability of the OFC, facilitating further advancements in high-precision astronomical spectral calibration light sources.
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Project Supported:
The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)
Clc Number:
