Title :
Impact of absorption depth on the characteristics of pulses generated by a Ti:Sapphire femtosecond laser
Author :
Rezvani, M. ; Shahabadi, M.
Author_Institution :
Center of Excellence on Appl. Electromagn. Syst., Univ. of Tehran, Tehran, Iran
Abstract :
A modified model of fast saturable absorption for approximating the Kerr-lens effect in Ti:Sapphire crystals is introduced and the model performance is compared with that of a one-dimensional temporal model previously proposed by Sander. The model is then used to extract the dynamics of the pulses generated by a typical Ti:Sapphire femtosecond laser. Among the crucial parameters affecting the pulse characteristics, the modulation depth of the approximated saturable absorber, which can be controlled by fabrication process of Ti:Sapphire crystals, is investigated in this work.
Keywords :
lenses; optical Kerr effect; optical fabrication; optical modulation; optical pulse generation; optical saturable absorption; solid lasers; titanium; Al2O3:Ti; Kerr-lens effect; Ti:Sapphire femtosecond laser; absorption depth; fabrication process; fast saturable absorption; modulation depth; one-dimensional temporal model; pulse generation; saturable absorber; Absorption; Cavity resonators; Crystals; Laser mode locking; Modulation; Ultrafast optics; Femtosecond laser; Kerr-lens effect; fast saturable absorber; modulation depth of an absorber;
Conference_Titel :
Millimeter-Wave and Terahertz Technologies (MMWATT), 2014 Third Conference on
Print_ISBN :
978-1-4799-6590-8
DOI :
10.1109/MMWaTT.2014.7057207
