Title :
Nonlinear spectral transformation of partially coherent pulses of mode-locked fiber laser
Author :
Kobtsev, Sergey M. ; Smirnov, S.V. ; Ivanenko, Alexey V. ; Kukarin, Sergey V.
Author_Institution :
Novosibirsk State Univ., Novosibirsk, Russia
Abstract :
All-normal dispersion fiber lasers mode-locked due to the effect of nonlinear polarization evolution (NPE) are simple and efficient tools for generation of pulses with different duration. These lasers feature reliable design and resistance to power damage, they can produce relatively high pulse energies without wave breaking and are able to operate in a variety of lasing regimes. Besides generation of commonly used stable trains of bell-shaped pulses, these lasers support partially mode-locked operation in which wave packets filled with quasi-stochastic ultra-short pulses are generated. Partially coherent pulses with relatively high energy levels have been discovered recently in fiber lasers comprising ultra-long oscillators and to the best of our knowledge, applications of such pulses have not as yet been studied. However, because these high-energy wave packets contain tightly-spaced femtosecond pulses with high peak power, their pulse structure may be useful in many applications including material processing, super-continuum generation, as well as other non-linear optical transformations.
Keywords :
fibre lasers; laser mode locking; optical fibre dispersion; optical fibre polarisation; optical harmonic generation; optical pulse generation; all-normal dispersion fiber lasers; bell-shaped pulse stable train generation; energy levels; femtosecond pulse; high-energy wave packets; material processing; mode-locked fiber laser; nonlinear optical transformations; nonlinear polarization evolution; nonlinear spectral transformation; partially coherent pulse; pulse energy; pulse structure; quasistochastic ultrashort pulse generation; supercontinuum generation; ultralong oscillators; Fiber lasers; Laser mode locking; Laser noise; Optical fiber amplifiers; Optical fiber dispersion; Optical fiber polarization;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4799-0593-5
DOI :
10.1109/CLEOE-IQEC.2013.6801401