[9p-C212-1~18] CS.3 Code-sharing session of 3.5 &3.7

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[9p-C212-11] Spectral control of microcombs by thermal tuning

〇(M2)Yukiya Sakaguchi¹, Yudai Matsumura¹, Masayuki Higaki¹, Eiji Hase², Yu Tokizane², Takeshi Yasui² (1.Grad. Sch. Sci. Tech. Innov., Tokushima Univ., 2.pLED, Tokushima Univ.)

Keywords:

Micro-combs,SiN micro-optical resonator,Thermal tuning

While micro-optical resonators (optical combs) are expected to be compact and low-cost comb light sources, their wide mode spacing poses a challenge for spectroscopic applications. One method to solve this problem is gapless operation using f_rep scanning. It is known that the FSR of a micro-optical resonator changes depending on the temperature dependence of the effective refractive index of the resonator material. In this study, we controlled the temperature of a SiN micro-optical resonator using thermal tuning with a Peltier element and evaluated the change in the spectrum of a soliton micro-optical comb.