Time-Domain Measurement of Optical True-Time Delay in Two-Dimensional Photonic Crystal Waveguides
2010
We report on the realization of optical true-time delay (TTD) by a two-dimensional photonic crystal waveguide (PCWG). Design and fabrication of the PCWG are investigated. The spectral dependence of the group delay is measured by detecting the phase shifts of a 10 GHz modulating signal, and a maximum delay of 25 ± 2.5 ps is obtained.
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