Near-Infrared Dual-Comb Spectroscopy of CO2 and N2O with a Discretized Highly Nonlinear Fiber

被引：1

作者：

Malfondet, Alix ^{[1
]}

Deroh, Moise ^{[1
]}

Ahmedou, Sidi-Ely ^{[2
]}

Parriaux, Alexandre ^{[3
]}

Hammani, Kamal ^{[1
]}

Dauliat, Romain ^{[2
]}

Labonte, Laurent ^{[4
]}

Tanzilli, Sebastien ^{[4
]}

Delagnes, Jean-Christophe ^{[5
]}

Roy, Philippe ^{[2
]}

Jamier, Raphael ^{[2
]}

Millot, Guy ^{[1
,6
]}

机构：

[1] Univ Bourgogne, Lab Interdisciplinaire Carnot de Bourgogne ICB, CNRS, F-21078 Dijon, France

[2] Univ Limoges, CNRS, XLIM, F-87000 Limoges, France

[3] Univ Neuchcitel, Inst Phys, Lab Temps Frequence, CH-2000 Neuchatel, Switzerland

[4] Univ Cote dAzur, CNRS, Inst Phys Nice, F-06108 Nice 2, France

[5] Univ Bordeaux, CNRS, CEA, CELIA,Ctr Lasers Intenses & Applicat, F-33405 Talence, France

[6] Inst Univ France IUF, F-75005 Paris, France

来源：

ACS PHOTONICS | 2024年 / 11卷 / 02期

关键词：

dual-comb spectroscopy; parametric conversion; nonlinear fiber; applicationof frequency combs; nonlinear fiber optic; NOBEL LECTURE; FREQUENCY; DISPERSION; TIME;

D O I：

10.1021/acsphotonics.3c01625

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this paper, we introduce an all-fiber dual-comb spectrometer based on an original design of a highly nonlinear fiber to efficiently convert frequency combs in the near-infrared from 1.55 mu m to around 2 mu m. We show that our spectrometer can be used to measure the absorption profiles of rovibrational transitions of CO2 and N2O molecules, especially their collisional self-broadening coefficients. The results show very good agreement with the HITRAN database, and thus, further measurements have been performed on a mixture of CO2/N2O to measure the broadening of the CO2 absorption lines resulting from the presence of N2O.

引用

页码：762 / 771

页数：10

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