Some new trends on LINBO3 modulators

Nadège Courjal; M. P. Bernal; J. Hauden; J. Amet; M. Roussey; H. Porte

doi:10.1117/12.647820

2 March 2006 Some new trends on lithium niobate modulators

Nadège Courjal, M. P. Bernal, J. Hauden, J. Amet, M. Roussey, H. Porte

Proceedings Volume 6123, Integrated Optics: Devices, Materials, and Technologies X; 61230C (2006) https://doi.org/10.1117/12.647820
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

Abstract

We report two novel kinds of LiNbO3 electro-optic modulators. The first one is oriented toward long haul high bit rate telecommunication systems. An original single-ended structure with a poled section and phase reversal electrodes is proposed to prevent the intensity modulation from chirp, without sacrifice on the driving voltage. We also show that improvements can be performed with the use of several poled sections. To remain attracting, LiNbO3 modulators should also exhibit a lower size. The second configuration described here is a new generation of LiNbO3 modulators based on photonic crystals, with a micrometric active length. We theoretically show that the optimal photonic structures for an efficient electro-optical tuning are based on a triangular array of holes integrated on a X-cut substrate. The first optical characterizations confirm the theoretical predictions, and exhibit a -12dB extinction ratio in the transmission response.

Citation Download Citation

Nadège Courjal, M. P. Bernal, J. Hauden, J. Amet, M. Roussey, and H. Porte "Some new trends on lithium niobate modulators", Proc. SPIE 6123, Integrated Optics: Devices, Materials, and Technologies X, 61230C (2 March 2006); https://doi.org/10.1117/12.647820

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