Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Coherent linear optical sampling at over 15 bits of resolution



Ian R. Coddington, William C. Swann, Nathan R. Newbury


Linear optical sampling characterizes a sample by measuring the distortions on a transmitted optical field, thereby quantifying the sample's optical response. By exploiting the high mutual coherence between two phase-locked femtosecond fiber lasers, we achieve very high signal-to-noise ratio measurements of transmitted optical electric fields through coherent averaging. We measure the optical electric fields with 15.16 bits of dynamic range (91 dB in intensity) and with 525 fs timing resolution over a 10 ns time window, in a 5.1 s averaging period.
Optics Letters


frequency comb, femtosecond laser, optical sampling


Coddington, I. , Swann, W. and Newbury, N. (2009), Coherent linear optical sampling at over 15 bits of resolution, Optics Letters, [online], (Accessed March 5, 2024)
Created July 15, 2009, Updated February 19, 2017