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Ultrafast electrooptic dual-comb interferometry

Vicente Andrés Durán Bosch (Institutionen för mikroteknologi och nanovetenskap, Fotonik) ; S. Tainta ; Victor Torres Company (Institutionen för mikroteknologi och nanovetenskap, Fotonik)
Optics Express (1094-4087). Vol. 23 (2015), 23, p. 30557-30569.
[Artikel, refereegranskad vetenskaplig]

Dual-comb interferometry is a particularly compelling technique that relies on the phase coherence of two laser frequency combs for measuring broadband complex spectra. This method is rapidly advancing the field of optical spectroscopy and empowering new applications, from nonlinear microscopy to laser ranging. Up to now, most dual-comb interferometers were based on modelocked lasers, whose repetition rates have restricted the measurement speed to ~kHz. Here we demonstrate a dual-comb interferometer that is based on electrooptic frequency combs and measures consecutive complex spectra at an ultra-high refresh rate of 25 MHz. These results pave the way for novel scientific and metrology applications of frequency comb generators beyond the realm of molecular spectroscopy, where the measurement of ultrabroadband waveforms is of paramount relevance.

Nyckelord: Ultrafast measurements, Spectroscopy, heterodyne, Fiber optics and optical communications

Denna post skapades 2015-12-11. Senast ändrad 2016-07-07.
CPL Pubid: 228061


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Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Fotonik


Atom- och molekylfysik och optik

Chalmers infrastruktur