Title :
Application of two- and three-photon absorbers for optical limiting and reduction of intensity fluctuations
Author :
Ryasnyanskiy, A.I.
Author_Institution :
Samarkand State Univ.
Abstract :
In this paper, the theoretical investigation of the fluctuation reduction of the laser radiation intensity and experimental results on optical limiting are presented for fundamental and second harmonic wavelengths of picosecond Nd:YAG laser due to two- and three-photon absorptions in BGO photorefractive crystal. The Z-scan technique with an open aperture was used for the determination of two- and three-photon absorption coefficients
Keywords :
absorption coefficients; bismuth compounds; high-speed optical techniques; laser beams; multiphoton processes; neodymium; optical limiters; photorefractive materials; Bi12GeO20; YAG:Nd; YAl5O12:Nd; Z-scan technique; absorption coefficient; intensity fluctuation reduction; laser radiation intensity; optical limiting; photorefractive crystal; picosecond laser; second harmonic wavelength; three-photon absorber; two-photon absorber; Absorption; Fluctuations; Laser theory; Nonlinear optics; Optical fiber communication; Optical harmonic generation; Optical recording; Optical sensors; Photorefractive materials; Wavelength measurement;
Conference_Titel :
Laser and Fiber-Optical Networks Modeling, 2005. Proceedings of LFNM 2005. 7th International Conference on
Conference_Location :
Yalta, Crimea
Print_ISBN :
0-7803-9147-0
DOI :
10.1109/LFNM.2005.1553205
