Optical frequency transmission over 251 km of fiber at 6x10-19 residual frequency instability in 100 s

Published

October 15, 2007

Author(s)

Paul A. Williams, Nathan R. Newbury, William C. Swann

Abstract

We demonstrate transmission of narrow-linewidth cw laser light (1535 nm) from a cavity-stabilized fiber laser over 251 km of single-mode optical fiber (76 km installed and 175 km on spools). Using standard Doppler-cancellation techniques, we transmit the light with a residual frequency instability of 3 x10^-16 at 1 s averaging time and better than 6 x 10^-19 at 100 s. This paper gives the practical experimental details that enabled this record distance and instability result. We find our ability to transmit over increased distances is limited by the transit time of the fiber and the environmentally induced fiber phase noise.

Proceedings Title

Tech. Dig., OFMC, Optical Fibre Measurement Conf.

Conference Dates

October 15-17, 2007

Conference Location

Teddington, UK

Conference Title

Optical Fibre Measurement Conference (OFMC )

Pub Type

Conferences

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Keywords

comb, Doppler cancellation, frequency transfer, optical clock

Citation

Williams, P. , Newbury, N. and Swann, W. (2007), Optical frequency transmission over 251 km of fiber at 6x10^-19 residual frequency instability in 100 s, Tech. Dig., OFMC, Optical Fibre Measurement Conf., Teddington, UK, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32720 (Accessed October 23, 2025)