Fiber Raman amplification for metrological transfer of phase-coherent optical frequencies

G. Bolognini, A. Mura, D. Calonico, F. Levi, C. Clivati, N. Poli, S. Faralli
2013 39th European Conference and Exhibition on Optical Communication (ECOC 2013)   unpublished
We analyze the benefits of distributed Raman amplification in metrology transfer of phasecoherent ultra-narrowband optical frequencies in a long fiber link (200 km with additional 16 dB loss), providing high-gain bi-directional amplification with limited impact on phase noise, attaining a fractional frequency instability of 3×10 − 19 over 1000 s.
doi:10.1049/cp.2013.1382 fatcat:bjmp453rcveu3eiqy36mqfiyvq