Mamyshev regenerator-based spectral flattening and noise removal for electro-optic combs

Alberto Rodriguez Cuevas; Eiji Hase; Auro M. Perego

doi:10.1364/OE.589695

Mamyshev regenerator-based spectral flattening and noise removal for electro-optic combs

Alberto Rodriguez Cuevas^*
, Eiji Hase
, Auro M. Perego

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

We numerically investigate how a Mamyshev regenerator can be used to suppress optical wave breaking(OWB)-induced spectral ripples and residual continuous wave background in broadband electro-optic (EO) frequency combs resulting in improved spectral bandwidth and flatness. In particular, our approach is able to remove noise and suppresses unwanted spectral ripples resulting from shock-wave formation due to the interaction between the residual continuous-wave background and pulse envelope. Our results are particularly relevant for the design of broadband EO comb sources with flat spectral profiles that are useful for applications such as dual-comb spectroscopy and microscopy.

Original language	English
Pages (from-to)	33137-33146
Number of pages	10
Journal	Optics Express
Volume	34
Issue number	18
Early online date	26 Aug 2026
DOIs	https://doi.org/10.1364/OE.589695
Publication status	Published - 7 Sept 2026

Bibliographical note

Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Data Access Statement

The datasets generated and analyzed during the current study are available from the corresponding author on reasonable request.

Funding

Royal Society (ICA\R1\231073); Engineering and Physical Sciences Research Council (EPSRC) (EP/W002868/1); Royal Academy of Engineering (ICRF-2526-9-183).

Funders	Funder number
Royal Academy of Engineering
Royal Society	ICA131073, ICA\R1\231073
Engineering and Physical Sciences Research Council	EP/W002868/1

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10.1364/OE.589695Licence: CC BY 4.0

Mamyshev regenerator-based spectral flattening and noise removal for electro-optic combs
Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Final published version, 3.83 MBLicence: CC BY 4.0

Cite this

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title = "Mamyshev regenerator-based spectral flattening and noise removal for electro-optic combs",

abstract = "We numerically investigate how a Mamyshev regenerator can be used to suppress optical wave breaking(OWB)-induced spectral ripples and residual continuous wave background in broadband electro-optic (EO) frequency combs resulting in improved spectral bandwidth and flatness. In particular, our approach is able to remove noise and suppresses unwanted spectral ripples resulting from shock-wave formation due to the interaction between the residual continuous-wave background and pulse envelope. Our results are particularly relevant for the design of broadband EO comb sources with flat spectral profiles that are useful for applications such as dual-comb spectroscopy and microscopy.",

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note = "Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

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AU - Rodriguez Cuevas, Alberto

AU - Hase, Eiji

AU - Perego, Auro M.

N1 - Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2026/9/7

Y1 - 2026/9/7

N2 - We numerically investigate how a Mamyshev regenerator can be used to suppress optical wave breaking(OWB)-induced spectral ripples and residual continuous wave background in broadband electro-optic (EO) frequency combs resulting in improved spectral bandwidth and flatness. In particular, our approach is able to remove noise and suppresses unwanted spectral ripples resulting from shock-wave formation due to the interaction between the residual continuous-wave background and pulse envelope. Our results are particularly relevant for the design of broadband EO comb sources with flat spectral profiles that are useful for applications such as dual-comb spectroscopy and microscopy.

AB - We numerically investigate how a Mamyshev regenerator can be used to suppress optical wave breaking(OWB)-induced spectral ripples and residual continuous wave background in broadband electro-optic (EO) frequency combs resulting in improved spectral bandwidth and flatness. In particular, our approach is able to remove noise and suppresses unwanted spectral ripples resulting from shock-wave formation due to the interaction between the residual continuous-wave background and pulse envelope. Our results are particularly relevant for the design of broadband EO comb sources with flat spectral profiles that are useful for applications such as dual-comb spectroscopy and microscopy.

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JO - Optics Express

JF - Optics Express

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Mamyshev regenerator-based spectral flattening and noise removal for electro-optic combs

Abstract

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Data Access Statement

Funding

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