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Microwave photonics

Harnessing slow light

A Correction to this article was published on 01 February 2012

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Slow-light techniques originally conceived for buffering high-speed digital optical signals now look set to play an important role in providing broadband phase and true time delays for microwave signals.

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Figure 1: Implementation of tunable phase shift and true time delay in a photonic resonant medium.
Figure 2: Photonic integrated circuits for MWP applications.

Change history

  • 14 December 2011

    In the original print and online versions of this Industry Perspective, the distances marked in Fig. 2a should have been 400 μm. This error has been corrected for both the PDF and HTML versions.

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Correspondence to José Capmany.

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Capmany, J., Gasulla, I. & Sales, S. Harnessing slow light. Nature Photon 5, 731–733 (2011).

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