Visualization of UV-induced photorefractive damage in LBO crystals

Author

Puyu, P.V. ; Nikitin, D.G. ; Byalkovskiy, O.A. ; Vershinin, O.I. ; Tyrtysnyy, V.A.

Author_Institution

IRE-Polus, NTO, Fryazino, Russia

fYear

2014

fDate

June 30 2014-July 4 2014

Firstpage

1

Lastpage

1

Abstract

UV-induced bulk degradation in LBO crystals was discovered. Long term generation of third or fourth harmonics of Yb pulsed fiber laser result in to bulk defects formation. Different approaches were used to visualize them and estimate their dimensions. The defects microstructure was observed by using the dark field method. Optical absorption in the crystals with defects was measured by using photothermal methods (PCI-3 device).

Keywords

fibre lasers; lithium compounds; optical harmonic generation; photorefractive effect; photothermal effects; ultraviolet spectra; LBO crystals; LiB₃O₅; UV-induced bulk degradation; UV-induced photorefractive damage; Yb pulsed fiber laser; bulk defects formation; dark field method; fourth harmonic generation; microstructure; optical absorption; photothermal methods; third harmonic generation; Crystals; Integrated optics; Optical pumping; Pump lasers; Visualization; 266 nm; 355 nm; LBO; UV-induced defects; UV-lasers; bulk defects; forth harmonic generation; third harmonic generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Laser Optics, 2014 International Conference

Conference_Location

Saint Petersburg

Print_ISBN

978-1-4799-3884-1

Type

conf

DOI

10.1109/LO.2014.6886485

Filename

6886485