Open AccessLaser absorption spectroscopy at 2 µm inside revolver-type anti-resonant hollow core fiber
Author(s) -
Michał Nikodem,
Grzegorz Gomółka,
Mariusz Klimczak,
Dariusz Pysz,
Ryszard Buczyński
Publication year - 2019
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.014998
Subject(s) - materials science , optics , core (optical fiber) , fiber laser , tunable diode laser absorption spectroscopy , laser , optical fiber , photonic crystal fiber , spectroscopy , fiber , absorption (acoustics) , optoelectronics , distributed feedback laser , wavelength , physics , quantum mechanics , composite material
In this paper, we present a laser-based sensing inside anti-resonant hollow core fiber. A distributed feedback laser diode operating near 2004 nm and a 1.35-m-long silica-based fiber are used to demonstrate carbon dioxide detection with sensitivity down to ~5 ppmv. Gas exchange time as low as 5 seconds is obtained. This performance was achieved in a very simple optical configuration, without any mirrors or lenses in the setup.