title: Stress-induced single-polarization single-transverse mode photonic crystal fiber with low nonlinearity.
abstract: We report on the design of a single-polarization single-transverse mode large mode area photonic crystal fiber. By including index-matched stress applying elements in the photonic cladding an ultra-broadband single polarization window is obtained while a large mode field area of ~700 microm(2) is maintained. Based on that design, an Yb-doped double-clad photonic crystal fiber is realized that combines low nonlinearity and single polarization properties. A first result of the high power operation using this fiber is demonstrated.
authors.forename: T
authors.initials: T
authors.lastname: Schreiber
authors.forename: F
authors.initials: F
authors.lastname: Röser
authors.forename: O
authors.initials: O
authors.lastname: Schmidt
authors.forename: J
authors.initials: J
authors.lastname: Limpert
authors.forename: R
authors.initials: R
authors.lastname: Iliew
authors.forename: F
authors.initials: F
authors.lastname: Lederer
authors.forename: A
authors.initials: A
authors.lastname: Petersson
authors.forename: C
authors.initials: C
authors.lastname: Jacobsen
authors.forename: K
authors.initials: K
authors.lastname: Hansen
authors.forename: J
authors.initials: J
authors.lastname: Broeng
authors.forename: A
authors.initials: A
authors.lastname: Tünnermann