http://www.cnr.it/ontology/cnr/individuo/prodotto/ID327790
Direct phase-locking of a 8.6-mu m quantum cascade laser to a mid-IR optical frequency comb: application to precision spectroscopy of N2O (Articolo in rivista)
- Type
- Label
- Direct phase-locking of a 8.6-mu m quantum cascade laser to a mid-IR optical frequency comb: application to precision spectroscopy of N2O (Articolo in rivista) (literal)
- Anno
- 2015-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1364/OL.40.000304 (literal)
- Alternative label
Gambetta, Alessio; Cassinerio, Marco; Coluccelli, Nicola; Fasci, Eugenio; Castrillo, Antonio; Gianfrani, Livio; Gatti, Davide; Marangoni, Marco; Laporta, Paolo; Galzerano, Gianluca (2015)
Direct phase-locking of a 8.6-mu m quantum cascade laser to a mid-IR optical frequency comb: application to precision spectroscopy of N2O
in Optics letters
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Gambetta, Alessio; Cassinerio, Marco; Coluccelli, Nicola; Fasci, Eugenio; Castrillo, Antonio; Gianfrani, Livio; Gatti, Davide; Marangoni, Marco; Laporta, Paolo; Galzerano, Gianluca (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Consiglio Nazionale delle Ricerche (CNR); Polytechnic University of Milan; Seconda Universita degli Studi di Napoli (literal)
- Titolo
- Direct phase-locking of a 8.6-mu m quantum cascade laser to a mid-IR optical frequency comb: application to precision spectroscopy of N2O (literal)
- Abstract
- We developed a high-precision spectroscopic system at 8.6 mu m based on direct heterodyne detection and phaselocking of a room-temperature quantum-cascade-laser against an harmonic, 250-MHz mid-IR frequency comb obtained by difference-frequency generation. The similar to 30 dB signal-to-noise ratio of the detected beat-note together with the achieved closed-loop locking bandwidth of similar to 500 kHz allows for a residual integrated phase noise of 0.78 rad (1 Hz-5 MHz), for an ultimate resolution of similar to 21 kHz, limited by the measured linewidth of the mid-IR comb. The system was used to perform absolute measurement of line-center frequencies for the rotational components of the nu(2) vibrational band of N2O, with a relative precision of 3 x 10(-10). (C) 2015 Optical Society of America (literal)
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