研究目的
To propose a parallel multiband frequency-conversion scheme for satellite applications based on a single optical frequency comb and design a recon?gurable satellite transponder for future multiband broadband satellites.
研究成果
The proposed system can realize frequency conversion in the optical domain through the photoelectric mixer, converting the Ka-band signal to other operational bands of satellites with a bit-error rate of the baseband data less than 10–9. The OFC served as the optical LO signal for mixing is recon?gurable to satisfy the requirements of different satellite applications.
研究不足
The experimental setup is limited to a proof-of-concept demonstration, and practical implementation may require further optimization for space applications.
1：Experimental Design and Method Selection:
The scheme involves a parallel multiband frequency-conversion based on microwave photonics, utilizing a single optical frequency comb for satellite applications.
2：Sample Selection and Data Sources:
A Ka-band signal is generated and converted to other satellite frequency bands.
3：List of Experimental Equipment and Materials:
Includes a bit error rate tester (BERT), Mach-Zehnder modulator (MZM), optical spectrum analyzer, and photodetector.
4：Experimental Procedures and Operational Workflow:
The Ka-band signal is converted to the optical domain, coupled with an OFC signal, and then converted back to electrical signals for analysis.
5：Data Analysis Methods:
The bit error rate of recovered baseband data is measured to verify system feasibility.
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