title: Dual frequency comb spectroscopy with a single laser.
abstract: We demonstrate a simple scheme for dual frequency comb spectroscopy in which the second frequency comb is generated by propagating the primary pulse train through a dazzler. The two frequency combs are combined behind a Mach-Zehnder interferometer, and the optical spectrum is read out by an rf-spectrum analyzer. The method is applied to record the overtone absorption spectrum of C2H2 (acetylene) in the wavelength region around 1.03 μm. A spectrum with a resolution of 4  cm(-1) is obtained, which compares well with that from the HITRAN database. A simple method for improving the spectral resolution is demonstrated.
authors.forename: I
authors.initials: I
authors.lastname: Znakovskaya
authors.forename: E
authors.initials: E
authors.lastname: Fill
authors.forename: N
authors.initials: N
authors.lastname: Forget
authors.forename: P
authors.initials: P
authors.lastname: Tournois
authors.forename: M
authors.initials: M
authors.lastname: Seidel
authors.forename: O
authors.initials: O
authors.lastname: Pronin
authors.forename: F
authors.initials: F
authors.lastname: Krausz
authors.forename: A
authors.initials: A
authors.lastname: Apolonski