Title :
Semiconductor quantum-dot saturable absorber mode-locked fiber laser
Author :
Herda, Robert ; Okhotnikov, Oleg G. ; Rafailov, Edik U. ; Sibbett, Wilson ; Crittenden, Paul ; Starodumov, Andrei
Author_Institution :
Optoelectron. Res. Centre, Tampere Univ. of Technol., Finland
Abstract :
We demonstrate self-starting passive mode-locking of an ytterbium fiber laser by using a multilayer quantum-dot saturable absorber mirror. A high modulation depth of the absorber ensures robust pulse operation of the fiber laser with a threshold pump power of 30 mW. The 2.8-ps pulses with an average power of 5 mW have been generated at 1042 nm.
Keywords :
fibre lasers; laser cavity resonators; laser mirrors; laser mode locking; optical modulation; optical multilayers; optical pulse generation; optical pumping; optical saturable absorption; semiconductor devices; ytterbium; 1042 nm; 2.8 ps; 30 mW; 5 mW; mode-locked fiber laser; modulation depth; multilayer saturable absorber mirror; optical pulse generation; optical pumping; quantum-dot saturable absorber; robust pulse operation; self-starting passive mode-locking; semiconductor saturable absorber; ytterbium fiber laser; Fiber lasers; Laser mode locking; Mirrors; Nonhomogeneous media; Pulse modulation; Pump lasers; Quantum dots; Robustness; Semiconductor lasers; Ytterbium; Lasers and laser optics; quantum dots (QDs); ultrafast lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.860376
