Title :
Generation of high-power femtosecond pulse and octave-spanning ultrabroad supercontinuum using all-fiber system
Author :
Takayanagi, Jun ; Nishizawa, Norihiko ; Nagai, Hiroyuki ; Yoshida, Makoto ; Goto, Toshio
Author_Institution :
Dept. of Quantum Eng., Nagoya Univ., Japan
Abstract :
We present the all-fiber system for amplification of high peak power femtosecond pulses. The 260-fs pulses are generated in the passively mode-locked Er-doped fiber (EDF) laser and amplified using the EDF amplifier system. The average and peak powers of the generated pulses are 215 mW and 43.2 kW, respectively, and the pulsewidth is 42.3 fs. Then the amplified pulses are coupled into polarization-maintaining highly nonlinear dispersion-shifted fiber and octave-spanning supercontinuum is generated. The spectral range is widely expanded from 980 to 2570 nm. To the best of our knowledge, this bandwidth is the maximum one in this wavelength region.
Keywords :
erbium; laser mode locking; optical fibre amplifiers; optical fibre dispersion; optical fibre polarisation; optical pulse generation; supercontinuum generation; 215 mW; 260 fs; 42.3 fs; 43.2 kW; 980 to 2570 nm; EDF amplifier system; Er-doped fiber laser; all-fiber system; femtosecond pulse amplification; femtosecond pulse generation; high-power pulse generation; highly nonlinear dispersion-shifted fiber; octave-spanning supercontinuum; passively mode-locked laser; polarization-maintaining fiber; ultrabroadband supercontinuum; Couplings; Fiber lasers; Laser mode locking; Optical fiber polarization; Optical pulse generation; Power generation; Pulse amplifiers; Pulse generation; Space vector pulse width modulation; Supercontinuum generation; Nonlinear optics; optical fiber amplifiers; optical fiber lasers; optical pulse amplifiers; optical pulses;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.837741
