We present a progress review on the advance of distance measurements made at KAIST by
making use of mode-locked lasers as the light source to meet ever-growing industrial …

Abstract The revised International System of Units (SI) came into force on May 20, 2019.
Simultaneously, updated versions of supporting documents for the practical realization of the …

Precision positioning of an object relative to a reference point is a common task in many
activities of production engineering. Sensor technologies for single axis measurement …

The ability to determine absolute distance to an object is one of the most basic
measurements of remote sensing. High-precision ranging has important applications in both …

The time-of-flight of light pulses has long been used as a direct measure of distance,, but
state-of-the-art measurement precision using conventional light pulses or microwaves peaks …

Dimensional measurements play a central role in enabling advanced manufacturing
technologies, enhancing the quality of products and increasing productivity. This role …

Laser interferometry serves a fundamental role in science and technology, assisting
precision metrology and dimensional length measurement. During the past decade, laser …

We propose a new tunable laser source concept for multiple-wavelength interferometry,
offering an unprecedented large choice of synthetic wavelengths with a relative uncertainty …

We propose a new approach to multiple-wavelength interferometry, targeted to high
bandwidth absolute distance measurement, with nanometer accuracy over long distances …

Absolute distances were measured using two femtosecond lasers of different pulse
repetition rates by revisiting the dual-comb interferometric method proposed by Coddington …