Absolute dual-comb spectroscopy at 1.55 mu m by free-running Er:fiber lasers (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Absolute dual-comb spectroscopy at 1.55 mu m by free-running Er:fiber lasers (Articolo in rivista) (literal)

Anno

• 2014-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1063/1.4882862 (literal)

Alternative label

• Cassinerio, Marco; Gambetta, Alessio; Coluccelli, Nicola; Laporta, Paolo; Galzerano, Gianluca (2014)
  Absolute dual-comb spectroscopy at 1.55 mu m by free-running Er:fiber lasers
  in Applied physics letters
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Cassinerio, Marco; Gambetta, Alessio; Coluccelli, Nicola; Laporta, Paolo; Galzerano, Gianluca (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 104 (literal)

Rivista

• Applied physics letters (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 4 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 23 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Consiglio Nazionale delle Ricerche (CNR); Polytechnic University of Milan (literal)

Titolo

• Absolute dual-comb spectroscopy at 1.55 mu m by free-running Er:fiber lasers (literal)

Abstract

• We report on a compact scheme for absolute referencing and coherent averaging for dual-comb based spectrometers, exploiting a single continuous-wave (CW) laser in a transfer oscillator configuration. The same CW laser is used for both absolute calibration of the optical frequency axis and the generation of a correction signal which is used for a real-time jitter compensation in a fully electrical feed-forward scheme. The technique is applied to a near-infrared spectrometer based on a pair of free-running mode-locked Er: fiber lasers, allowing to perform real-time absolute-frequency measurements over an optical bandwidth of more than 25 nm, with coherent interferogram averaging over 1-s acquisition time, leading to a signal-to-noise ratio improvement of 29 dB over the 50 mu s single shot acquisition. Using 10-cm single pass cell, a value of 1.9 x 10(-4) cm(-1) Hz(-0.5) noise-equivalent-absorption over 1 s integration time is obtained, which can be further scaled down with a multi-pass or resonant cavity. The adoption of a single CW laser, together with the absence of optical locks, and the full-fiber design makes this spectrometer a robust and compact system to be employed in gas-sensing applications. (C) 2014 AIP Publishing LLC. (literal)

Prodotto di

• Istituto di fotonica e nanotecnologie (IFN) (Istituto)

Autore CNR

• PAOLO LAPORTA (Unità di personale esterno)
• GIANLUCA GALZERANO (Unità di personale interno)

Incoming links:

Autore CNR di

• GIANLUCA GALZERANO (Unità di personale interno)
• PAOLO LAPORTA (Unità di personale esterno)

Prodotto

• Istituto di fotonica e nanotecnologie (IFN) (Istituto)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Applied physics letters (Rivista)