In this letter; a sampled Bragg grating (SBG) with a chirp in the sampling
period (CSP) is fabricated and experimentally investigated for the first ti
me. Its spectrum response shows that the effective chirp in the grating per
iod (CGP) varies among stopbands, which is consistent with the previous the
oretical predictions. (C) 2001 John Wiley & Sons, Inc.