Method for adjusting and stabilizing the center frequency of a space dual-optical comb range finder
By real-time detection and automatic adjustment of the optical comb source current, the problem of center spectrum drift of the dual optical comb interference signal was solved, realizing long-term stable operation and continuous and reliable distance measurement calculation of the dual optical comb rangefinder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING INST OF CONTROL ENG
- Filing Date
- 2026-05-08
- Publication Date
- 2026-07-17
AI Technical Summary
The center spectrum of the dual-comb interference signal drifts over time, causing distance calculation to be interrupted or fail, and existing technologies cannot achieve long-term stability.
By real-time detection of the spectrum of the dual optical comb interference center, it is determined whether it is within the adjustment range. The current of the optical comb light source is adjusted to stabilize the center spectrum within the target frequency range. The state of the optical comb interference center spectrum is monitored using an oscilloscope to determine the current adjustment range, and automatic adjustment is achieved through software or hardware devices.
The system achieves dynamic adjustment of the interferometric center spectrum of the dual-comb rangefinder, keeping it stable within the distance calculation range for a long time. This ensures the continuous reliability of the distance calculation work and avoids loss of mode lock of the optical comb source and interruption of distance measurement caused by manual intervention.
Smart Images
Figure CN122410488A_ABST