Low-Phase-Noise Microwave Generated by an Optical Frequency Comb Locked to an On-Chip Interferometer

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Low-Phase-Noise_Microwave_Generated_by_an_Optical_Frequency_Comb_Locked_to_an_On-Chip_Interferometer.pdf (974.96 KB)

Links to Files

https://ieeexplore.ieee.org/document/10272238

Permanent Link

https://doi.org/10.1109/EFTF/IFCS57587.2023.10272238
 http://hdl.handle.net/11603/31817

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UMBC Computer Science and Electrical Engineering Department
UMBC Faculty Collection
UMBC Student Collection

Author/Creator

Author/Creator ORCID

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

Date

2023-10-09

Type of Work

conference papers and proceedings
Text

Department

Program

Citation of Original Publication

J. P. Cahill, T. Mahmood, W. Zhou, P. G. Sykes and C. R. Menyuk, "Low-Phase-Noise Microwave Generated by an Optical Frequency Comb Locked to an On-Chip Interferometer," 2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS), Toyama, Japan, 2023, pp. 1-2, doi: 10.1109/EFTF/IFCS57587.2023.10272238.

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 Mark 1.0

Subjects

Abstract

We generated a low-phase-noise microwave by stabilizing an optical frequency comb with a 56.5-cm long photonic-integrated Mach-Zehnder interferometer that was fabricated in a commercial foundry. The phase noise of the 9.987-GHz tone was −105 dBc/Hz at a 1-kHz offset frequency, corresponding to a reduction of the free-running phase noise by 15 dB. Our results point towards a fully integrated low-phase-noise microwave source.