[15p-C32-1~16] CS.2 3.6超⾼速・⾼強度レーザー，3.8光計測技術・機器のコードシェアセッション

▲ [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)

キーワード：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