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We show a direct comparison between silicon reconfigurable delay lines based on coupled resonator optical waveguides and photonic crystal waveguides. The structures are used to selectively delay the two orthogonally polarized channels of a RZ-PolDM-DQPSK format at 100 Gbit/s.
In this paper, we report a direct comparison between coupled resonator optical waveguides (CROWs) and photonic crystal waveguides (PhCWs), which have both been exploited as tunable delay lines. The two structures were fabricated on the same silicon-on-insulator (SOI) technological platform, with the same fabrication facilities and evaluated under the same signal bit-rate conditions. We compare the...
The potential of coupled resonator optical waveguides (CROWs) as integrated reconfigurable delay lines has been recently demonstrated in a glass-based device by continuously controlling the delay of optical data streams over several bit lengths. Although the exploitation of a medium index contrast glass waveguide leads to low insertion losses, allowing large absolute delays, it poses a hard limit...
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