[23a-P02-1~10] 3.5 Ultrashort-pulse and high-intensity lasers (formerly 3.6)

[23a-P02-5] Advancement of the 100 MHz All-Polarization-Maintaining Dual-Comb Fiber Laser

〇Ryusei Uchiyama¹, Takumi Yumoto¹, Takuma Yoshioka¹, Kokuyama Wataru², Yu Tokizane³, Takeshi Yasui³, Shinichi Matubara⁴, Yoshiaki Nakajima¹ (1.Toho Univ., 2.NMIJ/AIST, 3.Institute of Post-LED Photonics, 4.JASRI)

Keywords:

optical frequency comb

We have previously developed a dual-comb fiber laser with a shared all-polarization-maintaining mechanism, featuring a shorter resonator length achieved by placing the Wavelength Division Multiplexing (WDM) coupler outside the resonator. This design allows for a high repetition rate of 100 MHz. It mitigates the constraints on the spectrally measurable bandwidth due to Δf_rep. In this study, we fabricated optical fiber amplifier to expand the spectral range through the utilization of non-linear optical effects.