Open AccessDiffraction limited amplification of picosecond pulses in 1170μm^2 effective area erbium fiber
Author(s) -
J. Jasapara,
A. DeSantolo,
Jeffrey W. Nicholson,
A.D. Yablon,
Zoltán Várallyay
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.018869
Subject(s) - optics , picosecond , materials science , pulse duration , pulse (music) , fiber , erbium , wavelength , amplified spontaneous emission , optoelectronics , physics , laser , doping , detector , composite material
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.