[17p-A31-1~11] 4.3 Laser sources and Laser applications

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)English Presentation

[17p-A31-8] Er:fiber Comb System Optimized for mW-class Mid-infrared Light Generation
Using a Waveguide-type Periodically Poled Lithium Niobate Crystal

〇(D)Ryo Mitsumoto¹, Naoya Kuse², Yoshiaki Nakajima³, Takeshi Yasui^1,2, Kaoru Minoshima^2,4, Kazumichi Yoshii² (1.Tokushima Univ., 2.Institute of Post-LED Photonics, Tokushima Univ., 3.Toho Univ., 4.Univ. of Electro-Commun.)

Keywords:

optical frequency comb,mid-infrared optical frequency comb

The purpose of our work is to improve the mid-infrared (MIR) power of a single-pass configuration MIR comb using waveguide-type periodically poled lithium niobate crystal (PPLN WG). To determine the conditions for generating mW-class MIR comb, The dependences of MIR comb output power on polarization-maintaining fiber (PMF) length between polarization-maintaining Er-doped fiber amplifier and polarization-maintaining highly nonlinear fiber (PM HNLF), PM HNLF length, PPLN WG crystal length, and fundamental light output power, respectively, were measured. In addition, we report the results of the characterization of a MIR comb with an MIR power greater than 4 mW obtained by optimizing the setup.