The 64th JSAP Spring Meeting, 2017

Presentation information

Oral presentation

3 Optics and Photonics » 3.6 Ultrashort-pulse and high-intensity lasers

[16p-311-1~20] 3.6 Ultrashort-pulse and high-intensity lasers

Thu. Mar 16, 2017 1:15 PM - 7:00 PM 311 (311)

Takasumi Tanabe(Keio Univ.), Kazutaka Nakamura(Tokyo Institute of Technology)

5:45 PM - 6:00 PM

[16p-311-16] Soliton pumping based mid-infrared optical frequency comb

LEI JIN1, Masahito Yamanaka1, Volker Sonnenschein1, Hideki Tomita1, Tetsuo Iguchi1, Atsushi Sato2, Akira Ideno2, Toshinari Oh-hara2, Norihiko Nishizawa1 (1.Nagoya Univ., 2.Sekisui Medical)

Keywords:mid-infrared, fiber laser, parametric processes

In our previous work, a wavelength tunable MIR comb driven by high power supercontinuum pulses have been reported. The scheme can generate MIR pulses with high coherence, however, the spectra were so broad that mode-power was not high as expected. In this work, a coherent Raman soliton pulse and Yb-fiber laser output were used as the seed pulses of DFG, and the 4.4-5.2 um wavelength tunable, offset-free, coherent MIR comb was generated. For confirming the coherence, the RF beat signal between the MIR comb and quantum cascade laser (QCL) was observed directly in the MIR region.