Title :
Fast near infrared photorefraction and phase conjugation in Sn2P2S6
Author :
Jazbinsek, M. ; Grabar, A.A. ; Kedyk, I.V. ; Haertle, D. ; Montemezzani, G. ; Günter, P. ; Stoika, I.M. ; Vysochanskii, Yu.M.
Author_Institution :
Nonlinear Opt. Lab., Swiss Fed. Inst. of Technol., Zurich, Switzerland
Abstract :
Tin hypothiodiphosphate (Sn2P2S6) photorefractive crystals exhibit high beam coupling gain combined with relatively fast photorefractive response in the near infrared, which makes them attractive for photorefractive applications in connection with diode or solid state near infrared lasers. An important process in several of these applications is phase conjugation of laser beams. This article investigates the photorefractive properties of Sn2P2S6 in the near infrared wavelength range. Conventional yellow, Te-doped, and modified brown crystals are examined. It was found that the coupling strength in brown is high enough to reach the saturation of reflectivity.
Keywords :
infrared spectra; laser beams; optical phase conjugation; photoreflectance; photorefractive materials; sulphur compounds; tin compounds; Sn2P2S6; Te-doped crystals; beam coupling gain; brown crystals; laser beams; near infrared photorefraction; phase conjugation; photorefractive crystals; reflectivity; tin hypothiodiphosphate; yellow crystals; Crystals; Diodes; Laser beams; Optical coupling; Photorefractive effect; Photorefractive materials; Reflectivity; Solid lasers; Solid state circuits; Tin;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1312351
