Measurement of 124-GHz E/O Modulation Bandwidth in Hybrid Modulation Laser

Measurement of 124-GHz E/O Modulation Bandwidth in Hybrid Modulation Laser

We analyzed and measured the intrinsic modulation characteristics of a hybrid modulation laser with a medium cavity length of 410 μm. The intra-cavity loss modulation section acting as an external cavity induces both a gently sloped modulation response at high frequencies and the photon-photon reson...

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Veröffentlicht in:IEEE photonics technology letters 2023-05, Vol.35 (10), p.1-1
Hauptverfasser: Shima, Takumi, Yokota, Nobuhide, Yoshida, Masato, Kobayashi, Wataru, Yasaka, Hiroshi
Format: Artikel
Sprache:eng
Schlagworte:
Bandwidths
direct modulation
Frequency modulation
hybrid modulation
Integrated optics
Lasers
Modulation
Optical losses
Optical modulation
Optical variables measurement
Oscillators
photon-photon resonance
Photons
Semiconductor laser
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Zusammenfassung:We analyzed and measured the intrinsic modulation characteristics of a hybrid modulation laser with a medium cavity length of 410 μm. The intra-cavity loss modulation section acting as an external cavity induces both a gently sloped modulation response at high frequencies and the photon-photon resonance effect in a directly modulated laser, which can efficiently widen the modulation bandwidth. We analytically and experimentally confirmed that a wide 3-dB E/O bandwidth of more than 124 GHz can be achieved by using a hybrid modulation laser.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2023.3263970