[16p-Z10-1~17] 3.15 Silicon photonics and integrated photonics

△ [16p-Z10-16] Noise measurement of microcomb for optical transmission application

〇Soma Kogure¹, Tamiki Ohtsuka¹, Shun Fujii^1,2, Hajime Kumazaki¹, Koshiro Wada¹, Yosuke Hashimoto³, Yuta Kobayashi³, Tomohiro Araki³, Kentaro Furusawa⁴, Norihiko Sekine⁴, Takasumi Tanabe¹ (1.Keio Univ., 2.RIKEN, 3.JAXA, 4.NICT)

Keywords:microresonator, microcomb, soliton comb

Since its first inception in 2007, microcombs, or frequency combs generated in micro resonator have revolutionized photonics more than ever. Especially, in 2014, mode-locked soliton comb was achieved enabling many applications such as optical spectroscopy, precise distance measurement, frequency synthesis, and so on. However, noise characteristics of these combs are still unknow to date.
In this talk, we demonstrate three comb state on silicon nitride (SiN) microring resonator; Turing pattern comb, modulation instability comb, and soliton comb. Then, we evaluate intensity noise and transmit data with each comb by means of intensity modulation-direct detection to see which comb state is suitable for transmission applications.