Title :
Fourier-Limited 19-ps Yb-Fiber Seeder Stabilized by Spectral Filtering and Tunable Between 1015 and 1085 nm
Author :
Agnesi, Antoniangelo ; Carrà, Luca ; Marco, Carlo Di ; Piccoli, Riccardo ; Reali, Giancarlo
Author_Institution :
Dept. of Electron., Univ. of Pavia, Pavia, Italy
fDate :
6/1/2012 12:00:00 AM
Abstract :
We report a passively mode-locked picosecond ytterbium-doped fiber laser operating in the normal dispersion regime, tunable over 70 nm around 1.05 μm. Mode-locking operation is achieved through a free-space coupled semiconductor saturable absorber. An external grating in Littrow configuration is used for both tuning and mode-locked stabilization through spectral filtering. Pulse duration of 19 ps with pulse repetition rates below 20 MHz is obtained with a maximum average output power of 1.5 mW.
Keywords :
diffraction gratings; fibre lasers; laser accessories; laser frequency stability; laser mode locking; laser tuning; optical fibre dispersion; optical filters; optical saturable absorption; ytterbium; Fourier limited fiber seeder; Littrow configuration; external grating; free space coupled semiconductor saturable absorber; normal dispersion regime; passively mode locked picosecond fiber laser; power 1.5 mW; spectral filtering; time 19 ps; wavelength 1015 nm to 1085 nm; Diffraction; Diffraction gratings; Fiber lasers; Laser mode locking; Laser tuning; Oscillators; Fiber lasers; gratings; mode-locked lasers; ytterbium;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2190893
