title: Observation of soliton molecules with independently evolving phase in a mode-locked fiber laser.
abstract: We report the experimental generation of two-soliton molecules in an all-polarization-maintaining ytterbium-doped fiber laser operating in the normal dispersion regime. These molecules exhibit an independently evolving phase and are characterized by a regular spectral modulation pattern with a modulation depth of 80% measured as an averaged value. Moreover, the numerical modeling confirms that the limited modulation depth of the spectrum is caused by the evolution of the phase difference between the pulses.
authors.affiliation: Institute of Applied Physics, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany. ortac@unam.bilkent.edu.tr
authors.forename: Bülend
authors.initials: B
authors.lastname: Ortaç
authors.forename: Alexandr
authors.initials: A
authors.lastname: Zaviyalov
authors.forename: Carsten K
authors.initials: CK
authors.lastname: Nielsen
authors.forename: Oleg
authors.initials: O
authors.lastname: Egorov
authors.forename: Rumen
authors.initials: R
authors.lastname: Iliew
authors.forename: Jens
authors.initials: J
authors.lastname: Limpert
authors.forename: Falk
authors.initials: F
authors.lastname: Lederer
authors.forename: Andreas
authors.initials: A
authors.lastname: Tünnermann