Digitally enhanced heterodyne interferometry (DEHI) combines the sub-wavelength
displacement measurements of conventional laser interferometry with the multiplexing …

The technical embodiment of the Huygens-Fresnel principle, an optical phased array (OPA)
is an arrangement of optical emitters with relative phases controlled to create a desired …

Efficient suppression of common-mode noises (CMNs) is significant for the performance of
interferometric fiber-optic sensor system. To suppress CMNs, a reference interferometer is …

We present two variations of a novel interferometry technique capable of simultaneously
measuring multiple targets with high sensitivity. The technique performs a homodyne phase …

We analyze the sensitivities of a geostationary gravitational wave interferometer mission
operating in the sub-Hertz band. Because of its smaller armlength, in the lower part of its …

The performance of existing ground based space debris laser ranging systems can be
improved by directing more light onto space debris by coherently combining multiple lasers …

We present a free-space, continuous-wave laser interferometric system capable of multi-
target dynamic phase measurement at acoustic frequencies up to a Nyquist bandwidth of …

We present direct differential phase recovery-an open-loop phasemeter topology for
differential optical interferometric measurements. The technique aims to remove common …

A novel optical signal processing scheme for multiplexing fibre segment interferometers is
proposed. The continuous-wave, homodyne technique combines code-division multiplexing …

We use digitally enhanced heterodyne interferometry to measure the stability of optical fiber
laser frequency references. Suppression of laser frequency noise by over four orders of …