Abstract

We demonstrate self-pumped optical phase conjugation in Te-doped Sn2P2S6, a semiconducting ferroelectric crystal, using a 1.06 µm wavelength cw Nd:YAG laser. The photorefractive gain of this crystal has been increased to Γ = (3.9± 0.4) cm-1 by Te doping. We observed self-pumped optical phase conjugation in a ring cavity scheme with phase conjugate reflectivities of more than 40 percent and a very fast phase conjugate rise time below 100ms at a light intensity of 20 W/cm2. This is more than two orders of magnitude faster than in any other photorefractive crystal, as e.g. in Rh-doped BaTiO3.

© 2005 Optical Society of America

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Appl. Opt. (1)

IEEE J. Quantum Electron. (1)

M. Cronin-Golomb, B. Fischer, J. O. White, A. Yariv, ”Theory and applications of four-wave mixing in photorefractive media,” IEEE J. Quantum Electron. QE-20, 12-30 (1984).
[CrossRef]

J. Opt. Soc. Am. B (3)

Mat. Res. Bull. (1)

C. D. Carpentier, R. Nitsche, ”Vapor growth and crystal data of thio(seleno)hypodiphosphates Sn2P2S6, Sn2P2Se6, Pb2P2S6, Pb2P2Se6 and their mixed crystals,” Mat. Res. Bull. 9, 401-410 (1974).
[CrossRef]

Opt. Commun. (2)

A. A. Grabar, I. V. Kedyk, M. I. Gurzan, I. M. Stoika, A. A. Molnar, Yu. M. Vysochanskii, ”Enhanced photorefractive properties of modified Sn2P2S6,” Opt. Commun. 188, 187-194 (2001).
[CrossRef]

G.W. Ross, P. Hribek, R. W. Eason, M. H. Garrett, D. Rytz, ”Impurity enhanced self-pumped phase conjugation in the near infrared in ’blue’ BaTiO3,” Opt. Commun. 101, 60-64 (1993).
[CrossRef]

Opt. Lett. (6)

Opt. Mater. (2)

G. Roosen, A. Godard, S. Maerten, V. Reboud, N. Dubreuil, G. Pauliat, ”Self-organization of laser cavities using dynamic holograms,” Opt. Mater. 23, 289-293 (2003).
[CrossRef]

G. Roosen, S. Bernhardt, P. Delaye, ”Ba0.77Ca0.23TiO3: a new photorefractive material to replace BaTiO3 in applications,” Opt. Mater. 23, 243-251 (2003).
[CrossRef]

Trends in Optics and Photonics (2)

R. S. Cudney, M. Kaczmarek, ”Optical poling in Rh:BaTiO3” in Trends in Optics and Photonics, Vol. 62, pp. 485-489 (2001).

A. A. Grabar, I. V. Kedyk, I. M. Stoika, Yu. M. Vysochanskii, M. Jazbinsek, G. Montemezzani, P. Günter ”Enhanced photorefractive properties of Te-doped Sn2P2S6,” in Trends in Optics and Photonics, Vol. 87, pp. 10-14 (2003).

Other (2)

M. B. Klein, ”Photorefractive Properties of BaTiO3” in [1] pp.195-236.

P. Günter, J.-P. Huignard, Photorefractive Materials and Their Applications I (Springer-Verlag, Berlin, 1988).

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