This tutorial presents a guided tour of laser feedback interferometry, from its origin and early
development through its implementation to a slew of sensing applications, including …

In this review, self‐mixing interferometry (SMI), a new configuration of interferometry, is
discussed. SMI has practical advantages compared to standard interferometry, for example …

A semiconductor laser subject to moderate optical feedback has been used to design an
interferometric displacement sensor. The autoadaptative signal processing presented in this …

Laser Doppler vibrometry (LDV) is a non-contact vibration measurement technique based
on the Doppler effect of the reflected laser beam. Thanks to its feature of high resolution and …

The terahertz (THz) frequency quantum cascade laser (QCL) is a compact source of high-
power radiation with a narrow intrinsic linewidth. As such, THz QCLs are extremely …

Most of the sensors are based on different device architectures depending on the
application type. A novel dopingless (DL) vertical Nanowire (VNW)-TFET is proposed that is …

We present a novel method by a multi-longitudinal mode laser with a waveplate to generate
two orthogonally polarized signals with stable and adjustable phase differences. The phase …

Self-mixing laser sensors show promise for a wide range of sensing applications, including
displacement, velocimetry, and fluid flow measurements. Several techniques have been …

We present an overview of the applications of self-mixing interferometer (SMI) to tasks of
interest for mechanical engineering, namely high-resolution measurement of linear …

In this article, we revisit the concept of optical feedback regimes in diode lasers and explore
each regime experimentally from a somewhat unconventional point of view by relating the …