title: Diffraction limited amplification of picosecond pulses in 1170 microm2 effective area erbium fiber.
abstract: Robust fundamental mode propagation and amplification of picosecond pulses at 1.56 microm wavelength is demonstrated in a core-pumped Er fiber with 1170 microm2 effective area. Record peak power exceeding 120 kW, and 67 nJ pulse energy are achieved before the onset of pulse breakup. A small increase in input pulse energy results in a temporal collapse of the pulse center to 58 fs duration, with peak powers approaching 200 kW.
authors: OFS Laboratories, Somerset, NJ 08873, USA. jasapara@ofsoptics.com
authors: J C
authors: JC
authors: Jasapara
authors: A
authors: A
authors: DeSantolo
authors: J W
authors: JW
authors: Nicholson
authors: A D
authors: AD
authors: Yablon
authors: Z
authors: Z
authors: Várallyay
mesh_terms: D000669:Amplifiers, Electronic; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D004871:Erbium / Q000737:chemistry*; D055100:Optical Fibers; D010783:Photometry / Q000295:instrumentation*; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*
chemical_list: D004871:Erbium