Title :
A 40-GHz 850-fs regeneratively FM mode-locked polarization-maintaining erbium fiber ring laser
Author :
Nakazawa, Masataka ; Yoshida, Eiji
Author_Institution :
NTT Network Innovation Lab., Kanagawa, Japan
Abstract :
An 850-fs pulse train at 40 GHz was directly generated from a regeneratively FM mode-locked fiber laser. The soliton effect was used to generate a short pulse and to suppress the supermode noise. The laser was locked to an external signal by a phase-locked loop (PLL) technique and the wavelength was tunable between 1540 and 1555 mn.
Keywords :
erbium; fibre lasers; frequency modulation; laser beams; laser mode locking; laser noise; laser tuning; optical fibre communication; optical fibre polarisation; optical modulation; optical phase locked loops; optical pulse generation; optical solitons; optical transmitters; ring lasers; wavelength division multiplexing; 1540 to 1555 nm; 40 GHz; 40 Gbit/s; 850 fs; Er fiber ring laser; external signal; laser tuning; phase-locked loop technique; pulse train; regeneratively FM mode-locked fiber laser; regeneratively FM mode-locked polarization-maintaining fiber laser; short pulse generation; soliton effect; supermode noise; supermode noise suppression; wavelength; Erbium; Erbium-doped fiber lasers; Frequency modulation; High speed optical techniques; Laser mode locking; Laser noise; Laser stability; Optical fiber polarization; Optical filters; Ring lasers;
Journal_Title :
Photonics Technology Letters, IEEE
