Abstract

We demonstrated for what is the first time to our knowledge photorefractive two-wave mixing in a bulk ferroelectric crystal using cw light at the telecommunication wavelength $1.55\mu \mathrm{m}$. In the Te-doped ferroelectric semiconductor ${\mathrm{Sn}}_2{\mathrm{P}}_2{\mathrm{S}}_6$ with absorption constant $<0.1{\mathrm{cm}}^{-1}$ at $1.55\mu \mathrm{m}$, grating recording times of $10\mathrm{ms}$ and a two-beam coupling gain of $2.8{\mathrm{cm}}^{-1}$ have been measured at $350\mathrm{mW}$ power (intensity $440\mathrm{W}∕{\mathrm{cm}}^2$) without a necessity to apply an external electric field. With a moving grating technique, a maximal gain of $6.0{\mathrm{cm}}^{-1}$ has been obtained.

© 2007 Optical Society of America

Tailoring of infrared photorefractive properties of Sn₂P₂S₆ crystals by Te and Sb doping

Tobias Bach, Mojca Jazbinšek, Germano Montemezzani, Peter Günter, Alexander A. Grabar, and Yulian M. Vysochanskii
J. Opt. Soc. Am. B 24(7) 1535-1541 (2007)

Photorefractive waveguides in He⁺ implanted pure and Te-doped Sn₂P₂S₆

Roger Mosimann, Flurin Juvalta, Mojca Jazbinsek, Peter Günter, and Alexander A. Grabar
J. Opt. Soc. Am. B 26(3) 444-449 (2009)

Self Pumped Optical Phase Conjugation at 1.06 μm in Te-doped Sn₂P₂S₆

Tobias Bach, Mojca Jazbinšek, Peter Günter, Alexander A. Grabar, Ivan M. Stoika, and Yulian M. Vysochanskii
Opt. Express 13(24) 9890-9896 (2005)

Near infrared photorefractive self focusing in Sn₂P₂S₆:Te crystals

Cristian Dan, Delphine Wolfersberger, Nicolas Fressengeas, Germano Montemezzani, and Alexander A. Grabar
Opt. Express 15(20) 12777-12782 (2007)

Interband photorefraction in Sn₂P₂S₆ at visible wavelengths

Roger Mosimann, Daniel Haertle, Mojca Jazbinsek, Germano Montemezzani, and Peter Günter
J. Opt. Soc. Am. B 23(8) 1620-1625 (2006)