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Delay Generators

Using integrated delay generators various optical functionalities can be realized, e.g. the generation of a variable optical delay of a light pulse (e.g. for routing applications of data signals) or adding arbitrary dispersion to a propagating ultra short signal pulse. Two coupled ring resonators serve as dispersive optical components for the „frequency-to-time“- compilation. Afterwards a phase modulator varies the signal spectrum and subsequent back transformation „time-to-frequency“ using a second arrangement of ring resonators reconstructs the time delayed optical signal.

Fig. 4: Block diagram of an integrated delay generator based on SOI

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