title: 80 W, 120 fs Yb-fiber frequency comb.
abstract: We report on a high-power fiber frequency comb exhibiting linear chirped-pulse amplification up to 80 W and generating 120 fs pulses. By proper matching of the group delay between the fiber stretcher and compressor, a compression ratio of 3100 could be achieved. Carrier envelope offset self-referencing and long-term phase locking to an rf reference is demonstrated, exemplifying the suitability of this system for generating vacuum and extreme-UV frequency combs via enhancement in passive cavities and high harmonic generation.
authors.affiliation: IMRA America, Inc., 1044 Woodridge Avenue, Ann Arbor, Michigan 48105, USA. aruehl@imra.com
authors.forename: Axel
authors.initials: A
authors.lastname: Ruehl
authors.forename: Andrius
authors.initials: A
authors.lastname: Marcinkevicius
authors.forename: Martin E
authors.initials: ME
authors.lastname: Fermann
authors.forename: Ingmar
authors.initials: I
authors.lastname: Hartl