Programmable fibre optic delay line
- G. A. Ball, W. H. Glenn, W. W. Morey
- IEEE Photonics Technol.. Lett., vol. 6,
We present a variable delay line for phased-array antennas based on a fiber Bragg grating of uniform period operating at constant optical wavelength. Time-delay variations of 330 ps in the frequency range 1 GHz to 14 GHz are demonstrated.