Title :
93 fs pulses from a low repetition rate fiber laser
Author :
Mortag, D. ; Neumann, J. ; Kracht, D. ; Morgner, U. ; Wandt, D. ; Sayinc, H.
Author_Institution :
Laser Zentrum Hannover e.V., Hannover, Germany
Abstract :
This paper reports on a passively mode-locked ytterbium-doped fiber laser with a repetition rate as low as 1.8 MHz. The oscillator with a resonator length of 118 m is hybridly mode-locked via nonlinear polarization evolution and saturable absorption in a semiconductor generating chirped 3.8 ps long pulses with a pulse energy of 1.0 nJ. These pulses are dechirped externally to pulse duration of 93 fs. These are the shortest pulses generated by fiber oscillators with repetition rates below 20 MHz.
Keywords :
chirp modulation; fibre lasers; laser beams; laser cavity resonators; laser mode locking; optical saturable absorption; ytterbium; JkJk:Yb; energy 1.0 J; fibre oscillator; low repetition rate; nonlinear polarization evolution; passively mode-locked ytterbium-doped fiber laser; resonator length; saturable absorption; semiconductor generating chirped; size 118 m; time 3.8 ps; time 93 fs; Absorption; Chirp; Fiber lasers; Hybrid power systems; Laser mode locking; Optical fiber polarization; Optical pulse generation; Optical pulses; Oscillators; Semiconductor lasers;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5196433
