[18p-A501-1~13] 3.5 Ultrashort-pulse and high-intensity lasers (formerly 3.6)

△ [18p-A501-7] Development of 100-MHz all-polarization-maintaining mechanical-sharing dual-comb laser

〇(B)Kosei Nagao¹, Takeru Endo¹, Haochen Tian^1,2, Akifumi Asahara¹, Kaoru Minoshima¹ (1.Univ. of Electro-Communications, 2.JSPS International Research Fellow)

Keywords:Optical frequency comb, Mode-locked laser, Dual-comb spectroscopy

Dual comb spectroscopy, which uses two combs has gained interest as a fast, high-precision, and high-resolution spectroscopy method among the applications of optical frequency comb. In this study, we adopt nonlinear amplified looped mirror (NALM) mode-locked mechanism, which is low noise and is relatively easy to shorten the cavity length. Then, we have developed a high repetition rate 100-MHz all-polarization-maintaining mechanical-sharing NALM based mode-locked dual-comb fiber laser by mechanically sharing the free space of the cavity.