Nonlinear Broadening of Electro-Optic Frequency Combs in All-Normal Dispersion Si3N4Waveguides
Paper in proceeding, 2021

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.

Author

Israel Rebolledo Salgado

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

RISE Research Institutes of Sweden

Zhichao Ye

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Simon Christensen

Technical University of Denmark (DTU)

Fuchuan Lei

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Krishna Sundar Twayana

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

M. Zelan

RISE Research Institutes of Sweden

Jochen Schröder

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Victor Torres Company

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021


9781665418768 (ISBN)

2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
Munich, Germany,

Subject Categories

Accelerator Physics and Instrumentation

Atom and Molecular Physics and Optics

Other Physics Topics

DOI

10.1109/CLEO/Europe-EQEC52157.2021.9541684

ISBN

9781557528209

More information

Latest update

12/10/2021