[15p-C32-1~16] CS.2 3.6&3.8 Code-sharing session

▲ [15p-C32-6] Development of discrete frequency scanning laser for interferometry

〇Tuan Cong Truong¹, Tuan Quoc Banh^1,2, Heui Hyeon Kim¹, Tatsutoshi Shioda¹ (1.Saitama Univ., 2.Sevensix Inc)

Keywords:discrete frequency scanning laser

Fast frequency scanning laser with discrete frequency step of several hundred GHz is proposed. The laser simply consists of laser medium and frequency tuning part in a ring configuration. The lasing frequency, allowed by a Fabry-Perot etalon, is discretely oscillated in the laser cavity with scanning resonant-frequency. In this paper, the resonant-frequency was swept by a combination of polygon scanner and diffraction grating as a demonstration. The discrete frequency step of a 435 GHz was confirmed with 14 kHz scanning rate and 1.8μs of frequency switching time