[15a-C301-1~7] CS.2 3.6超⾼速・⾼強度レーザー，3.8光計測技術・機器のコードシェアセッション

[15a-C301-5] 1um帯スーパーコンティニュームを用いた高コヒーレンス波長可変中赤外光周波数コム光源の開発

〇金 磊¹、山中 真仁¹、Sonnenschein Volker¹、富田 英生¹、井口 哲夫¹、佐藤 淳史²、大森 茜²、井手野 晃²、大原 利成²、西澤 典彦¹ (1.名大工、2.積水メディカル(株))

キーワード：中赤外光周波数コム、ファイバーレーザー、スーパーコンティニューム

With the developments of stable and efficient fiber laser and amplifier systems, the wavelength tunable optical frequency comb have has been realized in mid-infrared (MIR) region. Compared with seeding difference frequency generation (DFG) crystal by optical parametric oscillators or Raman solitons, a more reliable method to generate MIR comb with high coherence and stability is the scheme using supercontinuum (SC) pulses. In this reportwork, we report demonstrated a highly coherent MIR comb with a maximum wavelength tunability of 2.9-4.7 mm. High coherence of the MIR pulses generated from SC seeds was verified experimentally, and a fringe visibility of 0.90 was observed.