Design of Dispersive Interferometers for the Self-Stabilization of Optical Frequency Combs

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Design_of_Dispersive_Interferometers_for_the_SelfStabilization_of_Optical_Frequency_Combs.pdf (1.55 MB)

Links to Files

https://ieeexplore.ieee.org/document/9604268/

Permanent Link

http://doi.org/10.1109/EFTF/IFCS52194.2021.9604268
 http://hdl.handle.net/11603/38986

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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

2021-07

Type of Work

conference papers and proceedings
Text

Department

Program

Citation of Original Publication

Cahill, James P., Tanvir Mahmood, Patrick Sykes, Weimin Zhou, and Curtis R. Menyuk. "Design of Dispersive Interferometers for the Self-Stabilization of Optical Frequency Combs" In 2021 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS), 1–2, 2021. https://doi.org/10.1109/EFTF/IFCS52194.2021.9604268.

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
low phase noise microwave generation
Microwave measurement
UMBC Optical Fiber Communications Laboratory
UMBC High Performance Computing Facility (HPCF)
Optical frequency combs
active feedback
Phase measurement
Phase noise
Sensitivity
Optical variables control
Time-frequency analysis

Abstract

A promising approach for photonic-chip-based ultra-low-phase-noise microwave generation is to stabilize an optical frequency comb (OFC) using active feedback from a short-delay asymmetric interferometer. Previously, indirect evidence indicated that the microwave phase noise was limited by dispersion in the interferometer that reduced the interferometer’s sensitivity, ηrep, to the OFC’s repetition rate. No direct evidence was shown. Here, we compare direct measurements of ηrep in interferometers using single-mode and dispersion-shifted fibers (SMF and DSF). With SMF, ηrep was approximately 30% of the value that we measured with DSF, corresponding to a change in microwave phase noise of up to 10 dB.