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Rebolledo-Salgado, IsraelORCID iD iconorcid.org/0000-0001-8269-1033
Publications (9 of 9) Show all publications
Twayana, K., Rebolledo-Salgado, I., Girardi, M., Lei, F., Helgason, Ó. B., Karlsson, M. & Torres-Company, V. (2023). Multi-heterodyne Differential Phase Measurement of Microcombs. In: 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023: . Paper presented at 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023. Munich, Germany. 26 June 2023 through 30 June 2023. Institute of Electrical and Electronics Engineers Inc.
Open this publication in new window or tab >>Multi-heterodyne Differential Phase Measurement of Microcombs
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2023 (English)In: 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023, Institute of Electrical and Electronics Engineers Inc. , 2023Conference paper, Poster (with or without abstract) (Other academic)
Abstract [en]

Microcombs have been an intense area of research in frequency synthesis and metrology over the past decade. The measurement of amplitude and phase of microcombs provides unique insight into the nonlinear cavity dynamics. Different techniques have been reported to this aim, including iterative pulse shaping [1], dual-comb interferometry [2] and lately stepped-laser interferometry [3], resulting in unprecedented sensitivity and bandwidth. Here, we report a dramatic simplification of the latter setup by using another microcomb instead of a stepped tunable laser. This results into the acquisition of complex spectra in a single-scan without requiring additional optical components and high-end detection units.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc., 2023
Keywords
Laser interferometry; Phase measurement; Pulse shaping; Cavity dynamics; Complex spectrum; Differential phase measurements; Frequency metrology; Frequency synthesis; Measurements of; Microcombs; Nonlinear cavities; Pulse-shaping; Single scan; Iterative methods
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:ri:diva-68039 (URN)10.1109/CLEO/EUROPE-EQEC57999.2023.10231914 (DOI)2-s2.0-85175726047 (Scopus ID)
Conference
2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023. Munich, Germany. 26 June 2023 through 30 June 2023
Available from: 2023-11-23 Created: 2023-11-23 Last updated: 2023-11-23Bibliographically approved
Rebolledo-Salgado, I., Quevedo-Galan, C., Helgason, Ã. B., Lööf, A., Ye, Z., Lei, F., . . . Torres-Company, V. (2023). Platicon dynamics in photonic molecules. Communications Physics, 6(1), Article ID 303.
Open this publication in new window or tab >>Platicon dynamics in photonic molecules
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2023 (English)In: Communications Physics, E-ISSN 2399-3650, Vol. 6, no 1, article id 303Article in journal (Refereed) Published
Abstract [en]

Coherent dissipative structures known as platicons can be reliably generated in photonic molecules, resulting in deterministic and reproducible microcombs derived from a continuous-wave pump. However, the supermode spectrum of standard photonic molecules displays numerous avoided mode crossings, distorting the spectral envelope of platicon microcombs. Here, we obtain a platicon microcomb using a photonic molecule configuration based on two coupled microcavities, whose size differs by an order of magnitude. This results in an engineered microcomb spectrum that closely resembles the one generated in an ideal single microresonator with just one frequency mode shift. We observe the coupling between the repetition rate of the platicon microcomb with the frequency of the pump laser, an effect originating from the dispersive-wave recoil induced by mode crossings. Using two identical platicon microcombs, we make use of such coupling to realize dual-comb interferometry. These results contribute to understanding dissipative structures in normal-dispersion microresonators and offer an alternative to applications such as spectroscopy and metrology. 

Place, publisher, year, edition, pages
Nature Research, 2023
Keywords
Dispersion (waves); Molecules; Pumping (laser); Continuous wave pump; Deterministics; Dissipative structure; Micro resonators; Microcombs; Molecule configurations; Photonic molecules; Spectra’s; Spectral envelopes; Supermodes; Microresonators
National Category
Physical Sciences
Identifiers
urn:nbn:se:ri:diva-67662 (URN)10.1038/s42005-023-01424-5 (DOI)2-s2.0-85174435356 (Scopus ID)
Note

This work was supported by the European Research Council (GA 771410 DarkComb); Vetenskapsrådet (VR-2020-00453); Stiftelsen för Strategisk Forskning (FID16-0011). C.Q.G. acknowledges support from “Programa Propio UPM” of Universidad Politécnica de Madrid and from grants TED2021-131957B-100 and PID2021-1234590B-C21 funded by MCIN/AEI/10.13039/ 501100011033 and by the European Union NextGeneration EU/PRTR and ERDF “A way of making Europe”. The SiN devices were fabricated at Myfab Chalmers. 3 4

Available from: 2023-11-29 Created: 2023-11-29 Last updated: 2023-11-29Bibliographically approved
Rebolledo-Salgado, I., Durán, V., Helgason, Ó. B., Girardi, M., Zelan, M. & Torres-Company, V. (2023). Thermal-Controlled Scanning of a Bright Soliton in a Photonic Molecule. In: 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023: . Paper presented at 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023. Munich, Germany. 26 June 2023 through 30 June 2023. Institute of Electrical and Electronics Engineers Inc.
Open this publication in new window or tab >>Thermal-Controlled Scanning of a Bright Soliton in a Photonic Molecule
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2023 (English)In: 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023, Institute of Electrical and Electronics Engineers Inc. , 2023Conference paper, Poster (with or without abstract) (Other academic)
Abstract [en]

Over the last few years, dissipative Kerr solitons (DKS) in microresonators have boosted the development of chip-scale frequency comb sources (microcombs) in a variety of applications, from coherent communications to ultrafast distance ranging [1]. However, the intrinsic large free spectral range (FSR) of microcombs (within the gigahertz regime) is still a drawback for applications such as molecular spectroscopy, in which the comb line spacing dictates the spectral sampling resolution. Overcoming spectral sparsity by scanning the comb modes across a full FSR is challenging for a DKS microcomb, since the soliton operation must be kept while the pump laser is continuously swept. So far, it has been accomplished for a single microresonator by combining a feedback control loop with the thermal tuning of the cavity resonances by means of a microheater [2]. Recently, the use of two linearly coupled cavities (a photonic molecule) has shown to be a promising alternative to generate soliton microcombs with high conversion efficiency and uniform power distribution [3]. In this contribution, we address the challenge of scanning the soliton comb modes of a photonic molecule by thermal tuning. Specifically, we implement a scheme to scan a bright soliton over 60 GHz by tuning simultaneously the pump laser and the resonances of two coupled cavities.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc., 2023
Keywords
Conversion efficiency; Microresonators; Molecular spectroscopy; Molecules; Pumping (laser); Bright solitons; Comb modes; Coupled cavity; Free spectral range; Kerr solitons; Micro resonators; Microcombs; Photonic molecules; Pump laser; Thermal tuning; Solitons
National Category
Physical Sciences
Identifiers
urn:nbn:se:ri:diva-68014 (URN)10.1109/CLEO/EUROPE-EQEC57999.2023.10231468 (DOI)2-s2.0-85175734356 (Scopus ID)
Conference
2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023. Munich, Germany. 26 June 2023 through 30 June 2023
Available from: 2023-11-23 Created: 2023-11-23 Last updated: 2023-11-30Bibliographically approved
Rebolledo-Salgado, I., Ye, Z., Christensen, S., Lei, F., Twayana, K., Schröder, J., . . . Torres-Company, V. (2022). Coherent supercontinuum generation in all-normal dispersion Si3N4 waveguides. Optics Express, 30(6), 8641-8651
Open this publication in new window or tab >>Coherent supercontinuum generation in all-normal dispersion Si3N4 waveguides
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2022 (English)In: Optics Express, E-ISSN 1094-4087, Vol. 30, no 6, p. 8641-8651Article in journal (Refereed) Published
Abstract [en]

Spectral broadening of optical frequency combs with high repetition rate is of significant interest in optical communications, radio-frequency photonics and spectroscopy. Silicon nitride waveguides (Si3N4) in the anomalous dispersion region have shown efficient supercontinuum generation spanning an octave-bandwidth. However, the broadening mechanism in this regime is usually attained with femtosecond pulses in order to maintain the coherence. Supercontinuum generation in the normal dispersion regime is more prone to longer (ps) pulses, but the implementation in normal dispersion silicon nitride waveguides is challenging as it possesses strong requirements in propagation length and losses. Here, we experimentally demonstrate the use of a Si3N4 waveguide to perform coherent spectral broadening using pulses in the picosecond regime with high repetition rate. Moreover, our work explores the formation of optical wave breaking using a higher energy pulse which enables the generation of a coherent octave spanning spectrum. These results offer a new prospect for coherent broadening using long duration pulses and replacing bulky optical components.

Place, publisher, year, edition, pages
The Optical Society, 2022
Keywords
Dispersion (waves), Electric losses, Electromagnetic pulse, Optical communication, Pulse repetition rate, Silicon nitride, Waveguides, All-normal dispersions, Communication radios, High repetition rate, Optical frequency combs, Optical-frequency combs, Radio-frequency photonics, Radio-frequency spectroscopy, Silicon nitride waveguides, Spectral broadening, Supercontinuum generation
National Category
Other Physics Topics
Identifiers
urn:nbn:se:ri:diva-58889 (URN)10.1364/OE.450987 (DOI)2-s2.0-85125874624 (Scopus ID)
Note

 Funding details: FID16- 0011, VR-2020-00453; Funding details: European Research Council, ERC, GA 771410; Funding text 1: European Research Council (GA 771410 DarkComb); Vetenskapsr?det (VR-2020-00453); Stiftelsen f?r Strategisk Forskning (FID16- 0011).

Available from: 2022-03-30 Created: 2022-03-30 Last updated: 2023-05-25Bibliographically approved
Twayana, K., Lei, F., Ye, Z., Rebolledo-Salgado, I., Helgason, Ö. B., Karlsson, M. & Torres-Company, V. (2022). Differential phase reconstruction of microcombs. Optics Letters, 47(13), 3351-3354
Open this publication in new window or tab >>Differential phase reconstruction of microcombs
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2022 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 47, no 13, p. 3351-3354Article in journal (Refereed) Published
Abstract [en]

Measuring microcombs in amplitude and phase provides unique insight into the nonlinear cavity dynamics, but spectral phase measurements are experimentally challenging. Here, we report a linear heterodyne technique assisted by electro-optic downconversion that enables differential phase measurement of such spectra with unprecedented sensitivity (−50 dBm) and bandwidth coverage (>110 nm in the telecommunications range). We validate the technique with a series of measurements, including single-cavity and photonic molecule microcombs. © 2022 Optica Publishing Group

Place, publisher, year, edition, pages
Optica Publishing Group (formerly OSA), 2022
Keywords
Cavity dynamics, Differential phase, Differential phase measurements, Downconversion, Electro-optics, Heterodyne technique, Microcombs, Nonlinear cavities, Phase reconstruction, Spectral phasis, Phase measurement, article, bandwidth, telecommunication
National Category
Nano Technology
Identifiers
urn:nbn:se:ri:diva-59831 (URN)10.1364/OL.460913 (DOI)2-s2.0-85133360113 (Scopus ID)
Available from: 2022-08-03 Created: 2022-08-03 Last updated: 2023-04-28Bibliographically approved
Deriushkina, E., Rebolledo-Salgado, I., Mazur, M., Torres-Company, V., Andrekson, P., Schroder, J. & Karlsson, M. (2022). Dual-Comb Swept-Wavelength Interferometry: Theory and Experiment. Journal of Lightwave Technology, 40(19), 6508-6516
Open this publication in new window or tab >>Dual-Comb Swept-Wavelength Interferometry: Theory and Experiment
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2022 (English)In: Journal of Lightwave Technology, ISSN 0733-8724, E-ISSN 1558-2213, Vol. 40, no 19, p. 6508-6516Article in journal (Refereed) Published
Abstract [en]

Much efforts have been put to elaborate and improve different high precision measurement schemes for characterization of advanced photonic devices and optical fibers with increasing bandwidth requirements. In light of this, swept-wavelength interferometry and dual-comb spectroscopy have been extensively applied in characterization procedures. In this paper we present in detail an experimental scheme that combines these two techniques and overcomes their limitations by using a tunable laser source in order to sweep over the frequency comb spacing and capture all intermediate frequencies. We demonstrate full-field broadband measurements over 1.25 THz comb bandwidth with increased frequency resolution, which can be performed in only 5 ms sweep. We also show that the nonlinearity of the laser sweep can be removed without an auxiliary interferometer in the setup. 

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc., 2022
Keywords
characterization measurements, Dual-comb spectroscopy, swept-wavelength interferometry, Bandwidth, Laser beams, Optical fibers, Phase measurement, Photonic devices, Characterization measurement, Frequency measurements, High-precision measurement, Measurement by laser beam, Optical interferometry, Receiver, Sweep-wavelength interferometry, Swept wavelength, Wavelength measurement, Interferometry
National Category
Physical Sciences
Identifiers
urn:nbn:se:ri:diva-61704 (URN)10.1109/JLT.2022.3196161 (DOI)2-s2.0-85135752687 (Scopus ID)
Available from: 2022-12-29 Created: 2022-12-29 Last updated: 2023-04-28Bibliographically approved
Rebolledo-Salgado, I., Helgason, Ó., Ye, Z., Schröder, J., Zelan, M. & Torres-Company, V. (2022). Photonic molecule microcombs at 50 GHz repetition rate. In: Optics InfoBase Conference Papers: . Paper presented at CLEO: Science and Innovations, S and I 2022, 15 May 2022 through 20 May 2022. Optica Publishing Group (formerly OSA), Article ID SW4O.8.
Open this publication in new window or tab >>Photonic molecule microcombs at 50 GHz repetition rate
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2022 (English)In: Optics InfoBase Conference Papers, Optica Publishing Group (formerly OSA) , 2022, article id SW4O.8Conference paper, Published paper (Refereed)
Abstract [en]

We present a microcomb in a photonic molecule with 50 GHz repetition rate. The comb attains > 50% power conversion efficiency and displays a quiet point of operation in repetition rate with decreased phase noise. © 2022 The Author(s)

Place, publisher, year, edition, pages
Optica Publishing Group (formerly OSA), 2022
Keywords
Microcombs, Phase-noise, Photonic molecules, Point of operation, Power conversion efficiencies, Repetition rate, Molecules
National Category
Physical Sciences
Identifiers
urn:nbn:se:ri:diva-60166 (URN)10.1364/CLEO_SI.2022.SW4O.8 (DOI)2-s2.0-85136791497 (Scopus ID)9781557528209 (ISBN)
Conference
CLEO: Science and Innovations, S and I 2022, 15 May 2022 through 20 May 2022
Note

Funding details: European Research Council, ERC, GA 771410; Funding details: Stiftelsen för Strategisk Forskning, SSF, FID16-0011; Funding details: Vetenskapsrådet, VR, 2020-00453; Funding text 1: This work has been supported by the Swedish Research Council (2020-00453), the European Research Council (DarkComb GA 771410) and the Swedish Foundation for Strategic Research (FID16-0011).

Available from: 2022-10-10 Created: 2022-10-10 Last updated: 2023-05-25Bibliographically approved
Twayana, K., Rebolledo-Salgado, I., Deriushkina, E., Schröder, J., Karlsson, M. & Torres-Company, V. (2022). Spectral Interferometry with Frequency Combs. Micromachines, 13(4), Article ID 614.
Open this publication in new window or tab >>Spectral Interferometry with Frequency Combs
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2022 (English)In: Micromachines, E-ISSN 2072-666X, Vol. 13, no 4, article id 614Article in journal (Refereed) Published
Abstract [en]

In this review paper, we provide an overview of the state of the art in linear interferometric techniques using laser frequency comb sources. Diverse techniques including Fourier transform spec-troscopy, linear spectral interferometry and swept-wavelength interferometry are covered in detail. The unique features brought by laser frequency comb sources are shown, and specific applications highlighted in molecular spectroscopy, optical coherence tomography and the characterization of photonic integrated devices and components. Finally, the possibilities enabled by advances in chip scale swept sources and frequency combs are discussed. © 2022 by the authors. 

Place, publisher, year, edition, pages
MDPI, 2022
Keywords
laser frequency combs, microresonators, optical coherence tomography, optical frequency domain reflectometry, optical signal processing, optical spectroscopy, silicon photonics, spectral interfer-ometry, swept-wavelength interferometry, Coherent light, Frequency domain analysis, Molecular spectroscopy, Optical tomography, Photonic devices, Frequency combs, Laser frequency, Laser frequency comb, Micro resonators, Optical signal-processing, Spectral interf-ometry, Sweep-wavelength interferometry, Swept wavelength, Interferometry
National Category
Communication Systems
Identifiers
urn:nbn:se:ri:diva-59231 (URN)10.3390/mi13040614 (DOI)2-s2.0-85129175086 (Scopus ID)
Note

 Funding details: GA 812818; Funding details: European Research Council, ERC, GA 771410; Funding details: Stiftelsen för Strategisk Forskning, SSF, FID16-0011; Funding details: Knut och Alice Wallenbergs Stiftelse, KAW 2018.0090; Funding details: Vetenskapsrådet, VR, 2017-05157, 2019-04078, VR 2020-00453; Funding text 1: Funding: We acknowledge financial support from the Swedish Research Council (VR 2020-00453, 2017-05157, 2019-04078), the Knut and Alice Wallenberg Foundation (KAW 2018.0090), the European Research Council (DarkComb CoG, GA 771410), the European Union Horizon 2020 program under the Marie Sklodowska Curie action Microcomb (GA 812818), and the Swedish Foundation for Strategic Research (FID16-0011).

Available from: 2022-06-02 Created: 2022-06-02 Last updated: 2024-01-17Bibliographically approved
Rebolledo-Salgado, I., Ye, Z., Christensen, S., Lei, F., Twayana, K., Zelan, M., . . . Torres-Company, V. (2021). Nonlinear broadening of electro-optic frequency combs in all-normal dispersion Si3N4 waveguides. In: Optics InfoBase Conference Papers: . Paper presented at 2021 European Conference on Lasers and Electro-Optics, CLEO/Europe 2021, 21 June 2021 through 25 June 2021. The Optical Society
Open this publication in new window or tab >>Nonlinear broadening of electro-optic frequency combs in all-normal dispersion Si3N4 waveguides
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2021 (English)In: Optics InfoBase Conference Papers, The Optical Society , 2021Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
The Optical Society, 2021
National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:ri:diva-57352 (URN)2-s2.0-85120431374 (Scopus ID)9781557528209 (ISBN)
Conference
2021 European Conference on Lasers and Electro-Optics, CLEO/Europe 2021, 21 June 2021 through 25 June 2021
Available from: 2021-12-29 Created: 2021-12-29 Last updated: 2023-05-25Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0001-8269-1033

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