Optical coherence transfer over 50-km spooled fiber with frequency instability of 2×10<sup>−17</sup> at 1 s

Optical coherence transfer over 50-km spooled fiber with frequency instability of 2×10⁻¹⁷ at 1 s

Ma Chao-Qun, Li-Fei Wu, Jiang Yan-Yi†, Yu Hong-Fu, Bi Zhi-Yi, Ma Long-Sheng

Factional frequency instabilities of the uncompensated 50km fiber (blue circle), the compensated 50-km-long fiber (red solid squares), and the interferometer noise floor (black triangle).