Second harmonic generation in a LiNbO3 crystal fiber J. Yu, K. Giulietti, F. Sourgen, J.P. Wolf, F. Carrillo Romo, C. Goutaudier, M.T. Cohen-Adad and G. Boulon J. Phys. IV France, 10 PR8 DOI: 10.1051/jp4:2000818