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SEMICONDUCTOR LASERS

Designs break bandwidth record

Nature Photonics volume 15, pages 4–5 (2021)Cite this article

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Two independent reports of directly modulated lasers with bandwidths of >60 GHz may help bring data rates beyond 200 Gb s–1 to low-cost optical communication systems. Key to the successes has been managing photonic feedback effects within the laser cavities.

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Fig. 1: Ultrafast directly modulated semiconductor lasers.

References

  1. Yamaoka, S. et al. Nat. Photon. https://doi.org/10.1038/s41566-020-00700-y (2020).

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  3. 802.3bs-2017 - IEEE Standard for Ethernet - Amendment 10: Media Access Control Parameters, Physical Layers, and Management Parameters for 200 Gb/s and 400 Gb/s Operation (IEEE, 2017).

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Authors and Affiliations

  1. Fraunhofer Heinrich-Hertz-Institute, Photonic Components, Berlin, Germany

    Ute Troppenz

  2. IHP, Technology/Si Photonics, Frankfurt (Oder), Germany

    Jochen Kreissl

Authors
  1. Ute Troppenz
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  2. Jochen Kreissl
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Correspondence to Ute Troppenz.

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The authors declare no competing interests

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Troppenz, U., Kreissl, J. Designs break bandwidth record. Nat. Photonics 15, 4–5 (2021). https://doi.org/10.1038/s41566-020-00739-x

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