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Silicon photonics

Modulators make efficiency leap

Significant improvements in the loss and drive voltage of silicon photonics-based optical phase modulators look set to benefit both short-reach and long-distance data communications.

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Figure 1: Design and view of the phase shifter inside the optical modulator reported by Hiraki et al.
Figure 2: Comparison between the use of InGasP (as reported in refs 1 and 2) and Si as an n-type semiconductor in an electro-optic phase modulator.


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Correspondence to Jeremy Witzens.

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Witzens, J. Modulators make efficiency leap. Nature Photon 11, 459–462 (2017).

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