Dual-Comb Swept-Wavelength Interferometry: Theory and Experiment
Journal article, 2022

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.

Optical interferometry

characterization measurements

Dual-comb spectroscopy

Receivers

Phase measurement

Wavelength measurement

Bandwidth

Measurement by laser beam

Frequency measurement

swept-wavelength interferometry

Author

Ekaterina Deriushkina

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Israel Rebolledo Salgado

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Mikael Mazur

Nokia

Victor Torres Company

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Peter Andrekson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Jochen Schröder

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Magnus Karlsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Journal of Lightwave Technology

0733-8724 (ISSN) 1558-2213 (eISSN)

Vol. 40 19 6508-6516

Subject Categories

Control Engineering

DOI

10.1109/JLT.2022.3196161

Related datasets

Raw data for: Dual-Comb Swept-Wavelength Interferometry: Theory and Experiment [dataset]

DOI: 10.5281/zenodo.6451875

More information

Latest update

3/7/2024 9