Compact interferometers, called phasemeters, make it possible to operate over a large
range while ensuring a high resolution. Such performance is required for the stabilization of …

The accelerometers are commonly applied to measure the vibrations in the fields of motion
control and precision measurement, whose sensitivities are essentially important to their …

A precision PGC demodulation for homodyne interferometer modulated with a combined
sinusoidal and triangular signal is proposed. Using a triangular signal as additional …

Phase generated carrier (PGC) demodulation technology has been widely used in fiber-
optic interferometric sensors while nonlinearity is always accompanying with the scheme …

Requirements to gyroscopes of strapdown inertial navigation systems for aircraft application
are formulated. The construction of a ring helium–neon laser designed for autonomous …

Nonlinear error is a serious obstruction for inc-reasing the resolution and accuracy of the
homodyne grating interferometer. To eliminate the nonlinear error, this article presents a real …

The quadrature signals in the phase generated carrier (PGC) demodulation scheme
inevitably introduce nonlinear errors degrading the robustness. A highly robust PGC …

Ellipse fitting algorithm (EFA) has attracted tremendous interest in phase demodulation
schemes to eliminate nonlinear errors, however, there is an inherent drawback that the EFA …

In the distributed feedback fiber laser sensor interrogation based on 3× 3 coupler, the
asymmetry of the 3× 3 coupler and the inconsistency of detectors lead to harmonic distortion …

In this paper, we propose an ameliorated phase generated carrier (PGC) demodulation
scheme using Taubin least squares (LS) fitting of ellipse to eliminate the nonlinear errors …