Spectral Evolution of Long-Period Fiber Grating During Written Process and Their Influence in the Sensitivity A. Quintela, M.A.Quintela, D.A. González, S. Díaz, M. López-Amo, J.M. López-Higuera OFS'18 (18th International Optical Fiber Sensors Conference Technical Digest), Cancun, Mexico, pp , 23/10/2006 ISBN: 1557528160