title: Phase-locking of a 2.5 THz quantum cascade laser to a frequency comb using a GaAs photomixer.
abstract: We report the heterodyne detection and phase locking of a 2.5 THz quantum cascade laser (QCL) using a terahertz frequency comb generated in a GaAs photomixer using a femtosecond fiber laser. With 10 mW emitted by the QCL, the phase-locked signal at the intermediate frequency yields 80 dB of signal-to-noise ratio in a bandwidth of 1 Hz.
authors: Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Diderot and CNRS (UMR 7162), Paris, France. marco.ravaro@univ‐paris‐diderot.fr
authors: M
authors: M
authors: Ravaro
authors: C
authors: C
authors: Manquest
authors: C
authors: C
authors: Sirtori
authors: S
authors: S
authors: Barbieri
authors: G
authors: G
authors: Santarelli
authors: K
authors: K
authors: Blary
authors: J-F
authors: JF
authors: Lampin
authors: S P
authors: SP
authors: Khanna
authors: E H
authors: EH
authors: Linfield