[6p-S45-1~22] 3.6 Ultrashort-pulse and high-intensity lasers

△ [6p-S45-9] Characterization of supercontinuum optical frequency comb by the balanced heterodyne measurement

〇Toshiki Niinomi¹, Lei Jin¹, Norihiko Nishizawa¹ (1.Nagoya Univ.)

Keywords:Optical frequency comb, Fiber laser, Supercontinuum

In terms of the highly accurate spectroscopy and other applications, the coherent and wideband SC comb with good flatness is ideal for stable and highly sensitive measurements. We stabilized f_ceo and f_rep of fiber laser and the output pulse was amplified in a similariton amplifier. The pulse was coupled into highly nonlinear normal dispersive fiber (HNL-NDF) and the coherent supercontinuum comb with high flatness and stability was generated. In this work, supercontinuum comb generation using highly nonlinear normal dispersive and zero dispersive fiber were compared in terms of spectral shape and coherence.