Title :
Ti:sapphire laser beam coupling in Sn/sub 2/P/sub 2/S/sub 6/
Author :
Shumelyuk, A. ; Odoulov, S. ; Yi, Hyoseok ; Kratzig, E. ; Brost, G.
Author_Institution :
Inst. of Phys., Acad. of Sci., Kiev, Ukraine
Abstract :
Summary form only given. Tin hipothiodiphosphate (Sn/sub 2/P/sub 2/S/sub 6/, SPS) is a photorefractive material that exhibits subsecond response time and gain factor of several reciprocal centimetres for radiation of He-Ne and cw Nd/sup 3+/:YAG lasers. New data are presented in this report on photorefractive properties of SPS in the intermediate region of the spectrum which is covered by Ti:sapphire laser (0.75-0.9 /spl mu/m). This study revealed the existence of nominally undoped samples with two types of response: type 1 with the extended sensitivity to Nd/sup 3+/:YAG laser wavelength and type 2 with a sharper cut-off of sensitivity in the infrared, but with higher sensitivity for shorter wavelengths. A gain factor 17 cm/sup -1/ with a recording time of 5 s was achieved at 0.75 /spl mu/m for 10 W/cm/sup 2/ intensity.
Keywords :
holographic gratings; photorefractive materials; solid lasers; tin compounds; titanium; 0.75 to 0.9 micron; Al/sub 2/O/sub 3/:Ti; Debye screening length; Sn/sub 2/P/sub 2/S/sub 6/; Ti:sapphire laser beam coupling; cut-off of sensitivity; effective trap density; fringe spacing dependence; gain factor; nominally undoped samples; photorefractive material; slow out-of-phase grating; subsecond response; tin hipothiodiphosphate; Atom optics; Delay; Laser beams; Optical coupling; Optical pulse generation; Optical pulses; Optimized production technology; Physics; Predictive models; Tin;
Conference_Titel :
Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-339-0
DOI :
10.1109/CLEO.1998.676012
