Differential phase reconstruction of microcombs
Journal article, 2022

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.

Author

Krishna Sundar Twayana

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Fuchuan Lei

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Zhichao Ye

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Israel Rebolledo Salgado

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

RISE Research Institutes of Sweden

Òskar Bjarki Helgason

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Magnus Karlsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Victor Torres Company

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Optics Letters

0146-9592 (ISSN) 1539-4794 (eISSN)

Vol. 47 13 3351-3354

Subject Categories

Accelerator Physics and Instrumentation

Medical Laboratory and Measurements Technologies

Atom and Molecular Physics and Optics

DOI

10.1364/OL.460913

PubMed

35776628

More information

Latest update

7/14/2022