keywords = {Instrumentation, measurement, and metrology; Metrological instrumentation; Electrical to optical converters; Optical directional couplers; Polarization maintaining fibers; Power spectral density; Traveling wave devices; Variable optical attenuators},
number = {11},
pages = {14650--14660},
publisher = {OSA},
title = {Measurement of optical to electrical and electrical to optical delays with ps-level uncertainty},
volume = {26},
month = {May},
year = {2018},
doi = {10.1364/OE.26.014650},
abstract = {We present a new measurement principle to determine the absolute time delay of a waveform from an optical reference plane to an electrical reference plane and vice versa. We demonstrate a method based on this principle with 2 ps uncertainty. This method can be used to perform accurate time delay determinations of optical transceivers used in fiber-optic time-dissemination equipment. As a result the time scales in optical and electrical domain can be related to each other with the same uncertainty. We expect this method will be a new breakthrough in high-accuracy time transfer and absolute calibration of time-transfer equipment.},