title: Midinfrared frequency comb from self-stable degenerate GaAs optical parametric oscillator.
abstract: We pump a degenerate frequency-divide-by-two optical parametric oscillator (OPO) based on orientation-patterned GaAs with a stable Tm frequency comb at 2 micrometer wavelength and measure the OPO comb offset frequency and linewidth. We show frequency division by two with sub-Hz relative linewidth of the comb teeth. The OPO thermally self-stabilizes and oscillates for nearly an hour without any active control.
authors.forename: Kevin F
authors.initials: KF
authors.lastname: Lee
authors.forename: C
authors.initials: C
authors.lastname: Mohr
authors.forename: J
authors.initials: J
authors.lastname: Jiang
authors.forename: Peter G
authors.initials: PG
authors.lastname: Schunemann
authors.forename: K L
authors.initials: KL
authors.lastname: Vodopyanov
authors.forename: M E
authors.initials: ME
authors.lastname: Fermann