Measurement of the temporal delay of a light pulse through a one-dimensional photonic crystal

We measure a maximum group delay of 22.6 bps for a light pulse propagating through a I cn long fiber Bragg grating when the frequency of the light is tuned near the band edge of the grating Our measurements are performed in t he time domain with single picosecond resolution using wavelength-tunable p ulses of 0.5 nm bandwidth spectrally sliced fi om a mode-locked laser. Our experimental results are qualitatively confirmed by our numerical simulatio ns. Promising applications include optical delay elements for phased-array radar and encoders/decoders in spread-spectrum code-diffusion multiple-acce ss systems. (C) 1999 John Wiley & Sons, Inc.