Low-noise microwave generation from micro-combs via transferring the timing stability of mode-locked lasers

Changmin Ahn; Igju Jeon; Daewon Suk; Hansuek Lee; Jungwon Kim

doi:10.1117/12.2692793

12 March 2024 Low-noise microwave generation from micro-combs via transferring the timing stability of mode-locked lasers

Changmin Ahn, Igju Jeon, Daewon Suk, Hansuek Lee, Jungwon Kim

Author Affiliations +

Proceedings Volume PC12885, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVII; PC128850H (2024) https://doi.org/10.1117/12.2692793
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We stabilized the timing of a 9.92-GHz microcomb using a 250-MHz mode-locked laser as a reference. To ensure precise timing linkage between two optical pulse sources, the electro-optic sampling-based timing detector (EOS-TD), which can detect the timing difference between microwave and optical pulse train with attoseconds precision, was employed. The 9.92-GHz microwave phase noise of the micro-comb was suppressed to –100 dBc/Hz at 10 kHz offset frequency, which is suppressed by >25 dB compared to the free-running case.

Conference Presentation

Citation Download Citation

Changmin Ahn, Igju Jeon, Daewon Suk, Hansuek Lee, and Jungwon Kim "Low-noise microwave generation from micro-combs via transferring the timing stability of mode-locked lasers", Proc. SPIE PC12885, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XVII, PC128850H (12 March 2024); https://doi.org/10.1117/12.2692793

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