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 …

Self-mixing interferometry (SMI) is a well-known non-destructive sensing technique that has
been widely applied in both laboratory and engineering applications. In a laser SMI sensing …

In order to reconstruct the micro-vibration quickly and easily, a novel phase unwrapping
algorithm based on multiple Hilbert transform is proposed. Hilbert transform is performed …

Optical rangefinders based on Self-Mixing Interferometry are widely described in literature,
but not yet on the market as commercial instruments. The main reason is that it is relatively …

A novel instrument based on Self-mixing interferometry is proposed to simultaneously
measure absolute distance and velocity. The measurement method is designed for working …

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 paper, we demonstrated an improved laser self-mixing grating interferometer (SMGI)
with auto-collimation design which can avoid the disturbance from the light feedback of the …

Laser self-mixing interferometry (SMI) is an attractive sensing scheme due to its compact,
self-align, and cost-effective nature. In this work, an SMI based compute-intensive phase …

Self-Mixing interferometry (SMI) signal characteristics are highly dependent on both the
operating optical regime and target surface. In this paper, a method is proposed to overcome …

In this paper, the inherent error as well as the robustness of a previously published
displacement retrieval technique called the phase unwrapping method (PUM) is analyzed …