期刊
OPTICS EXPRESS
卷 23, 期 23, 页码 30557-30569出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.23.030557
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资金
- Swedish Research Council (VR) [048701]
- Marie Curie Intra European Fellowship [PIEF-GA-2013-625121]
- VTC a Marie Curie Career Integration grant [PCIG13-GA-2013-618285]
- Spanish Ministry of Science and Innovation [TEC2010-21303-04-01]
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 similar 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. (C) 2015 Optical Society of America
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