1.3-μm wavelength-tunable quantum-dot optical frequency comb generator integrated with absorptive optical attenuator

Naokatsu Yamamoto*, Kouichi Akahane, Tetsuya Kawanishi, Redouane Katouf, Hideyuki Sotobayashi, Yuki Yoshioka, Hiroshi Takai

*この研究の対応する著者

研究成果: Article査読

6 被引用数 (Scopus)

抄録

The generation of multiple-wavelength fine peaks in the 1.3-μm waveband with wavelength tunability and powercontrollability is successfully demonstrated using a quantum-dot optical frequency comb laser (QD-CML) integrated with an absorptive optical attenuator by employing a broadband optical injection seeding technique. High-quality, high-density InAs/InGaAs QD optical gain media are fabricated on a GaAs substrate using a sandwiched sub-nano separator (SSNS) growth technique. A wide wavelength tuning range between 1.274 and 1.302 μm was achieved at a low gain current of 50 mA. In addition, a high extinction ratio of -20 dB at a low attenuator voltage (-2.5 V) was achieved in the fabricated QD-CML.

本文言語English
ページ(範囲)282-285
ページ数4
ジャーナルPhysica Status Solidi (C) Current Topics in Solid State Physics
9
2
DOI
出版ステータスPublished - 2012 2
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学

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