Low-Phase Noise Microwave Generation using Self-Stabilized ƒ꜀ₑₒ-Free Comb

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LowPhase_Noise_Microwave_Generation_using_SelfStabilized_f_textceoFree_Comb.pdf (662.69 KB)

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https://ieeexplore.ieee.org/document/9234935/

Permanent Link

http://doi.org/10.1109/IFCS-ISAF41089.2020.9234935
 http://hdl.handle.net/11603/38983

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UMBC Faculty Collection
UMBC Computer Science and Electrical Engineering Department

Author/Creator

Author/Creator ORCID

https://orcid.org/0000-0003-0269-8433

Date

2020-07

Type of Work

conference papers and proceedings
Text

Department

Program

Citation of Original Publication

Cahill, James P., Tanvir Mahmood, Patrick Sykes, Weimin Zhou, Matthew J. Cich, Rafal Wilk, Sebastian Mueller, Felix Rohde, and Curtis R. Menyuk. "Low-Phase Noise Microwave Generation Using Self-Stabilized ƒ꜀ₑₒ-Free Comb". In 2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF), 1–2, 2020. https://doi.org/10.1109/IFCS-ISAF41089.2020.9234935.

Rights

This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain

Subjects

Optical interferometry
Microwave filters
Microwave photonics
Microwave theory and techniques
UMBC Optical Fiber Communications Laboratory
UMBC High Performance Computing Facility (HPCF)
Difference frequency generation
Low-phase noise microwave generation
Optical frequency combs
Phase noise
Optical feedback
Optical noise

Abstract

Due to the inherently low crosstalk between carrier-envelope and repetition rate control mechanisms, difference-frequency generated (DFG) optical frequency combs are an attractive light source for low-phase-noise microwave generation based on feedback control. However, the DFG process adds phase noise to individual comb lines in accordance with the carrier-envelope noise. Here, we stabilized a DFG comb with a 7.5 m interferometer and generated a 10 GHz signal with a phase noise of −123 dBc/Hz at 1 kHz offset frequency.