Title :
All-optical FM mode-locking of fibre laser
Author :
Greer, E.J. ; Smith, K.
Author_Institution :
BT Labs., Ipswich, UK
Abstract :
A novel method of all-optical active mode locking which relies on the nonlinear process of crossphase modulation is described. Mode locking is achieved by using a stream of optical pulses propagating along a length of optical fibre to provide a periodic phase perturbation of the laser cavity. The technique is demonstrated using an erbium-doped fibre ring laser.
Keywords :
fibre lasers; frequency modulation; laser mode locking; optical modulation; Er doped optical fibre; FM mode-locking; all-optical active mode locking; crossphase modulation; fibre laser; fibre ring laser; laser cavity; nonlinear process; optical fibre; optical pulses; periodic phase perturbation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921107
