Abstract

A fully integrated 4-bit true time delay device using polymer optical switches and waveguide delay lines is demonstrated. The fabricated device, which contains five 2×2 thermo-optic switches, has a maximum power consumption of 143  mW and a switching time less than 3  ms. The rf phase error, which is affected by the optical switch cross talk, is also theoretically analyzed and proved to be negligible by experimental results.

© 2007 Optical Society of America

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