[15a-C301-1~7] CS.2 3.6&3.8 Code-sharing session

[15a-C301-5] Highly coherent tunable mid-infrared optical frequency comb seeded by high power supercontinuum at 1 um

〇LEI JIN¹, MASAHITO YAMANAKA¹, VOLKER SONNENSCHEIN¹, HIDEKI TOMITA¹, TETSUO IGUCHI¹, ATSUSHI SATO², AKANE OMORI², AKIRA IDENO², TOSHINARI OH-HARA², NORIHIKO NISHIAZAWA¹ (1.Nagoya Univ., 2.Sekisui Medical)

Keywords:mid-infrared optical frequency comb, fiber laser, supercontinuum

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.