[13p-N105-1~14] 3.9 Terahertz technologies

△ [13p-N105-6] Frequency-Comb Generation in Resonant-Tunneling-Diode Terahertz Oscillator

〇Tomoki Hiraoka¹, Yuta Inose¹, Takashi Arikawa¹, Hiroshi Ito², Koichiro Tanaka¹ (1.Kyoto Univ., 2.Kitasato Univ.)

Keywords:resonant tunneling diode oscillator, terahertz, mode locking

Generating the frequency comb in the terahertz frequency range is important for the precise gas spectroscopy and high-speed communications. However, it has been difficult to generate the terahertz frequency comb using a small and efficient semiconductor device, especially in the frequency range of 0.1 to 3 THz until today. In this study, we report on the terahertz frequency comb generation by applying an optical feedback to the resonant-tunneling-diode oscillator, a semiconductor device that oscillates in the frequency range of 0.1 to 3 THz.