Ultra-Wide-Bandwidth Optically Controlled DFB Laser With External Cavity

Shigeru Mieda; Nobuhide Yokota; Wataru Kobayashi; Hiroshi Yasaka

doi:10.1109/JQE.2016.2557489

Ultra-Wide-Bandwidth Optically Controlled DFB Laser With External Cavity

Shigeru Mieda, Nobuhide Yokota, Wataru Kobayashi, Hiroshi Yasaka

Broadband Engineering Division

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Modulation bandwidth enhancement of an optically controlled single-mode semiconductor laser is achieved by introducing an external cavity into the laser. A calculation based on a rate equation model shows that the 3-dB bandwidth of the optically controlled external cavity laser (OC-ECL) can be substantially enhanced by controlling the feedback light intensity and phase properly. A broad 3-dB bandwidth of 59 GHz is experimentally confirmed by using the fabricated OC-ECL. The results suggest that a combination of cross-gain modulation and photon-photon resonance is suitable to enhance the modulation bandwidth of semiconductor lasers.

Original language	English
Article number	7457598
Journal	IEEE Journal of Quantum Electronics
Volume	52
Issue number	6
DOIs	https://doi.org/10.1109/JQE.2016.2557489
Publication status	Published - 2016 Jun

Keywords

cross-gain modulation
photon-photon resonance
semiconductor lasers

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/JQE.2016.2557489

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title = "Ultra-Wide-Bandwidth Optically Controlled DFB Laser With External Cavity",

abstract = "Modulation bandwidth enhancement of an optically controlled single-mode semiconductor laser is achieved by introducing an external cavity into the laser. A calculation based on a rate equation model shows that the 3-dB bandwidth of the optically controlled external cavity laser (OC-ECL) can be substantially enhanced by controlling the feedback light intensity and phase properly. A broad 3-dB bandwidth of 59 GHz is experimentally confirmed by using the fabricated OC-ECL. The results suggest that a combination of cross-gain modulation and photon-photon resonance is suitable to enhance the modulation bandwidth of semiconductor lasers.",

keywords = "cross-gain modulation, photon-photon resonance, semiconductor lasers",

author = "Shigeru Mieda and Nobuhide Yokota and Wataru Kobayashi and Hiroshi Yasaka",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.",

year = "2016",

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T1 - Ultra-Wide-Bandwidth Optically Controlled DFB Laser With External Cavity

AU - Mieda, Shigeru

AU - Yokota, Nobuhide

AU - Kobayashi, Wataru

AU - Yasaka, Hiroshi

PY - 2016/6

Y1 - 2016/6

N2 - Modulation bandwidth enhancement of an optically controlled single-mode semiconductor laser is achieved by introducing an external cavity into the laser. A calculation based on a rate equation model shows that the 3-dB bandwidth of the optically controlled external cavity laser (OC-ECL) can be substantially enhanced by controlling the feedback light intensity and phase properly. A broad 3-dB bandwidth of 59 GHz is experimentally confirmed by using the fabricated OC-ECL. The results suggest that a combination of cross-gain modulation and photon-photon resonance is suitable to enhance the modulation bandwidth of semiconductor lasers.

AB - Modulation bandwidth enhancement of an optically controlled single-mode semiconductor laser is achieved by introducing an external cavity into the laser. A calculation based on a rate equation model shows that the 3-dB bandwidth of the optically controlled external cavity laser (OC-ECL) can be substantially enhanced by controlling the feedback light intensity and phase properly. A broad 3-dB bandwidth of 59 GHz is experimentally confirmed by using the fabricated OC-ECL. The results suggest that a combination of cross-gain modulation and photon-photon resonance is suitable to enhance the modulation bandwidth of semiconductor lasers.

KW - cross-gain modulation

KW - photon-photon resonance

KW - semiconductor lasers

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Ultra-Wide-Bandwidth Optically Controlled DFB Laser With External Cavity

Abstract

Keywords

ASJC Scopus subject areas

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