DOI: 10.1051/jp3:1994289
J. Phys. III France 4 (1994) 2441-2450

Thermally stable cross-linked polymers for electro-optic applications

J. Liang¹, R. Levenson¹, C. Rossier¹, E. Toussaere¹, J. Zyss¹, A. Rousseau², B. Boutevin², F. Foll¹ and D. Bosc<sup>3

1</sup>  FRANCE TELECOM/CNET/PAB, B.P. 107, 196 Av. Henri Ravera, 92225 Bagneux, France
²  E.N.S.C.M., Laboratoire de Chimie Appliquée, 8 rue Ecole Normale, 34053 Montpellier, France
³  FRANCE TELECOM/CNET/OCM/TEP, route de Tregastel, B.P. 40, 22300 Lannion, France

(Received 27 April 1994, accepted 4 July 1994)

Abstract
The electro-optic properties of a new variety of cross-linked polymer referred to as Red-acid Magly are being reported. Its linear and nonlinear optical properties are characterized in comparison with the classical side-chain polymer DR1-MMA. The combined curing and poling processes are optimized so as to improve the thermal stability of the nonlinear optical properties. Polymer films are shown to sustain a high electro-optic coefficient of 12 pm/V at 1.32 m during several weeks at 85 °C. An electro-optic phase modulator based on this polymer has been fabricated and demonstrated.

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