TY - JOUR AU - Xing, Sida AU - Kowligy, Abijith AU - Lesko, Daniel AU - Lind, Alexander AU - Diddams, Scott C2 - Optics Letters DA - 2020-05-01 04:05:00 DO - https://doi.org/10.1364/OL.391486 LA - en PB - Optics Letters PY - 2020 TI - All-fiber frequency comb at 2 µm providing 1.4-cycle pulses ER -