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 3351-3354Subject Categories
Accelerator Physics and Instrumentation
Medical Laboratory and Measurements Technologies
Atom and Molecular Physics and Optics
DOI
10.1364/OL.460913
PubMed
35776628