Laser spectroscopy of deuterated methane at 1.54 μm as a reference standard for optical communications

Author

Svelto, C. ; Bava, E. ; Galzerano, G.

Author_Institution

Dipt. di Elettronica e Inf., Politecnico di Milano, Italy

Volume

3

fYear

2004

fDate

18-20 May 2004

Firstpage

2349

Abstract

In this paper we present the first laser-spectroscopy measurements on CH₃D molecules at 1.54 μm wavelength. In particular, the Voigt absorption profiles for the R(6) transition at 1543.78 nm were measured by FM spectroscopy and numerical integration of the 1-st derivative signals. From measurements of the collisional broadening contribution at 3 different gas pressures, the collisional broadening coefficient for the 1.54 μm transition was obtained.

Keywords

frequency standards; infrared spectra; laser frequency stability; measurement by laser beam; modulation spectra; organic compounds; spectral line broadening; 1543.78 nm; FM spectroscopy; R(6) transition; Voigt absorption profiles; absolute frequency stabilization; collisional broadening coefficient; deuterated methane; frequency standards; laser-spectroscopy; optical communications; reference standard; synchronous detection; Communication standards; Diode lasers; Frequency modulation; Gas lasers; Laser modes; Laser stability; Laser tuning; Optical sensors; Spectroscopy; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE

ISSN

1091-5281

Print_ISBN

0-7803-8248-X

Type

conf

DOI

10.1109/IMTC.2004.1351564

Filename

1351564