Wideband frequency modulation spectroscopy using the quantum cascade laser

Author

Whittaker, E.A. ; Kelly, J.F. ; Sharpe, S.W. ; Hartman, J.S. ; Gmachl, C. ; Capasso, F. ; Sivco, D.L. ; Baillargeon, J.N. ; Cho, A.Y.

Author_Institution

Stevens Inst. of Technol., Hoboken, NJ, USA

fYear

1999

fDate

28-28 May 1999

Firstpage

194

Lastpage

195

Abstract

Summary form only given. The quantum cascade (QC) laser is a promising new source for tunable, infrared laser radiation and the spectroscopic capabilities of the QC laser were recently demonstrated. In this report, we extend previous work by demonstrating wideband frequency modulation (FM) of the QC laser and the detection of FM spectroscopic signals from a weakly absorbing sample of molecules.

Keywords

electro-optical modulation; frequency modulation; infrared spectra; quantum well lasers; spectroscopic light sources; FM spectroscopic signal detection; QC laser; quantum cascade laser; spectroscopic capabilities; tunable infrared laser radiation; weakly absorbing molecule sample; wideband frequency modulation; wideband frequency modulation spectroscopy; Distributed feedback devices; Frequency modulation; Laser feedback; Laser modes; Laser tuning; Quantum cascade lasers; Quantum well lasers; Radio frequency; Spectroscopy; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-595-1

Type

conf

DOI

10.1109/CLEO.1999.834072

Filename

834072