Electro-optic dual-comb interferometry over 40-nm bandwidth
Journal article, 2016

Dual-comb interferometry is a measurement technique that uses two laser frequency combs to retrieve complex spectra in a line-by-line basis. This technique can be implemented with electro-optic frequency combs, offering intrinsic mutual coherence, high acquisition speed and flexible repetition-rate operation. A challenge with the operation of this kind of frequency comb in dual-comb interferometry is its limited optical bandwidth. Here, we use coherent spectral broadening and demonstrate electro-optic dual-comb interferometry over the entire telecommunications C band (200 lines covering ~ 40 nm, measured within 10 microseconds at 100 signal-to-noise ratio per spectral line). These results offer new prospects for electro-optic dual-comb interferometry as a suitable technology for high-speed broadband metrology, for example in optical coherence tomography or coherent Raman microscopy.

Author

Vicente Andrés Durán Bosch

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Peter Andrekson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Victor Torres Company

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Optics Letters

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

Vol. 41 18 4190-4193

Phase-sensitive optical parametric amplifiers (PSOPA)

European Commission (FP7), 2012-03-01 -- 2017-02-28.

Areas of Advance

Information and Communication Technology

Life Science Engineering (2010-2018)

Subject Categories

Telecommunications

Atom and Molecular Physics and Optics

DOI

10.1364/OL.41.004190

PubMed

27628354

More information

Created

10/8/2017