L. A. M. Johnson

most citedFrequency ratio of two optical clock transitions in

^{171}

^{+}

and constraints on the time-variation of fundamental constants

467 citations · 469 across the 2 of their papers we have counts for

collaborators

2 papers

quant-ph2023★ 2 cited

Co-propagation of 6 Tb/s (60*100Gb/s) DWDM & QKD channels with ~17 dBm aggregated WDM power over 50 km standard single mode fiber

P. Gavignet, F. Mondain, E. Pincemin +5

We report the co-propagation, over 50 km of SSMF, of the quantum channel (1310 nm) of a QKD system with ~17 dBm total power of DWDM data channels (1550 nm range). A metric to evalu…

physics.atom-ph2014★ 467 cited

Frequency ratio of two optical clock transitions in $^{171}$ Yb $^{+}$ and constraints on the time-variation of fundamental constants

R. M. Godun, P. B. R. Nisbet-Jones, J. M. Jones +7

Singly-ionized ytterbium, with ultra-narrow optical clock transitions at 467 nm and 436 nm, is a convenient system for the realization of optical atomic clocks and tests of present…

Co-propagation of 6 Tb/s (60*100Gb/s) DWDM & QKD channels with ~17 dBm aggregated WDM power over 50 km standard single mode fiber

Frequency ratio of two optical clock transitions in 171Yb+ and constraints on the time-variation of fundamental constants

Frequency ratio of two optical clock transitions in $^{171}$ Yb $^{+}$ and constraints on the time-variation of fundamental constants