Title :
Photorefraction in LiNbO3:Fe crystals with femtosecond laser pulses
Author :
Maxein, Dominik ; Bückers, Johanna ; Haertle, Daniel ; Buse, Karsten
Author_Institution :
Inst. of Phys., Univ. of Bonn, Bonn, Germany
Abstract :
The photorefractive effect in lithium niobate crystals (LiNbO3) is investigated using femtosecond (fs) laser pulses. Photorefractive effect can destroy the beam profiles and the phase matching conditions due to "optical damage" and "light-induced scattering". The aim of the work presented here is to look for similarities and differences in the photorefractive effect for pulsed and cw illumination at 532 nm wavelength. Elementary holographic gratings are written with different light polarizations and average intensities into as-grown and oxidized iron-doped LiNbO3 crystals. The writing beam is split in two beams of approximately equal power.
Keywords :
holographic gratings; iron; laser materials processing; lithium compounds; photorefractive effect; photorefractive materials; LiNbO3:Fe; elementary holographic grating; femtosecond laser pulse; laser beam writing; light polarization; lithium niobate crystal; oxidized iron-doped crystal; photorefractive effect; wavelength 532 nm; Crystals; Holographic optical components; Holography; Laser beams; Lithium niobate; Optical frequency conversion; Optical pulses; Optical scattering; Photorefractive effect; Ultrafast optics;
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.2009.5196408
