Patent · US Active

Self-mix module utilizing filters

US11307019B2 · kind B2 · utility

0Cited by

18References

20Claims

0Family size

Assignee

VIXAR, INC. · US

Inventors

Klein L. Johnson · Windom, US
Tal Fishman · Haifa, IL
Tal Bakish · Lod, IL

Key dates

Filing date	Jan 27, 2021
Grant date	Apr 19, 2022
Priority date	—
Expiry date	Jan 27, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH01S2301/02
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A system and method for generating, enhancing, and detecting the amplitude and phase modulation of a laser under a condition of self-mixing is provided. The system may comprise a laser and a detector to extract the characteristic self-mix signal, which is then interpreted using algorithms implemented in hardware or software. In the case of the laser being a Vertical Cavity Surface Emitting laser (VCSEL), the output signal can be detected by monitoring the surface light emission by means of a beam splitter, or in some embodiments as emission from the bottom surface of the laser. In some embodiments, the system may further comprise a wavelength filter such as an etalon in the signal path.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.