title: Octave-spanning super-continuum from a silica photonic crystal fiber pumped by a 386 MHz Yb:fiber laser.
abstract: We report octave-spanning super-continuum generation in a silica photonic crystal fiber (PCF) pumped by a compact, efficient, mode-locked all-normal dispersion Yb:fiber laser. The laser achieved 45% optical-to-optical efficiency by using an optimized resonator design, producing chirped 750 fs pulses with a repetition rate of 386 MHz and an average power of 605 mW. The chirped pulses were compressed to 110 fs with a loss of only 4% by using multiple reflections on a pair of Gires-Tournois interferometer mirrors, yielding an average power of up to 580 mW. The corresponding peak power was 13.7 kW and produced a super-continuum spectrum spanning from 696-1392 nm.
authors.affiliation: Scottish Universities Physics Alliance (SUPA), Department of Physics, School of Engineering and Physical Sciences, Heriot-Watt University, Riccarton, Edinburgh, UK. C.Farrell@hw.ac.uk
authors.forename: C
authors.initials: C
authors.lastname: Farrell
authors.forename: K A
authors.initials: KA
authors.lastname: Serrels
authors.forename: T R
authors.initials: TR
authors.lastname: Lundquist
authors.forename: P
authors.initials: P
authors.lastname: Vedagarbha
authors.forename: D T
authors.initials: DT
authors.lastname: Reid