Effective bandwidth of optical pre-emphasis by photon-photon resonance in hybrid modulation laser diode

Hiroshi Yasaka; Nobuhide Yokota; Takahiko Shindo; Wataru Kobayashi

doi:10.1587/elex.21.20240391

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Effective bandwidth of optical pre-emphasis by photon-photon resonance in hybrid modulation laser diode

Hiroshi Yasaka, Nobuhide Yokota, Takahiko Shindo, Wataru Kobayashi

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Keywords: semiconductor laser, direct modulation, modulation bandwidth, hybrid modulation, photon-photon resonance

JOURNAL FREE ACCESS

2024 Volume 21 Issue 18 Pages 20240391

DOI https://doi.org/10.1587/elex.21.20240391

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Abstract

The effective bandwidth of optical pre-emphasis in a hybrid modulation laser diode (HMLD) was examined in terms of the CR time constant. The modulation response of the intra-cavity loss modulation (ICLM) section was optically pre-emphasized through a photon-photon resonance (PPR) effect in the HMLD. It was confirmed that the PPR effect is effective up to 500 GHz and can contribute to expanding the modulation bandwidth of the HMLD.

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