Nonlinear Broadening of Electro-Optic Frequency Combs in All-Normal Dispersion Si3N4Waveguides

Israel Rebolledo-Salgado, Zhichao Ye, Simon Christensen, Fuchuan Lei, Krishna Twayana, Martin Zelan, Jochen Schroder, Victor Torres-Company

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Dispersion-engineered silicon nitride waveguides are often used for broadening of frequency combs. Previous experiments have focused on anomalous dispersion waveguides pumped by femtosecond laser pulses, whereby coherent supercontinuum generation relies on soliton compression and dispersive wave emission (see e.g. [1] ). This regime of operation does not work well with high-repetition rate sources, such as microcombs or electro-optic (EO) combs, because the pulse duration is not sufficiently short to drive coherent broadening in anomalous dispersion media. Indeed, octave-spanning coherent broadening of high-repetition rate sources has been attained in anomalous dispersion silicon nitride waveguides, but this required using a pre-broadening stage in a normal-dispersion highly nonlinear fiber (HNLF) [2]. Implementing this stage in a silicon nitride waveguide is the topic we address in this contribution.

Original languageEnglish
Title of host publicationProceedings of 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
PublisherIEEE
Publication dateJun 2021
ISBN (Electronic)9781665418768
DOIs
Publication statusPublished - Jun 2021
Event2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference - Virtual event, Munich, Germany
Duration: 21 Jun 202125 Jun 2021
https://www.cleoeurope.org/

Conference

Conference2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
LocationVirtual event
Country/TerritoryGermany
CityMunich
Period21/06/202125/06/2021
Internet address

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

Fingerprint

Dive into the research topics of 'Nonlinear Broadening of Electro-Optic Frequency Combs in All-Normal Dispersion Si<sub>3</sub>N<sub>4</sub>Waveguides'. Together they form a unique fingerprint.

Cite this