Patent · US Active

Optical interferometer and vibrometer comprising such an optical interferometer

US9212896B2 · kind B2 · utility

1Cited by

1References

17Claims

0Family size

Assignee

Polytec GmbH · CA

Inventors

Michael Wortge · Heidelberg, DE
Christian Rembe · Waldbronn, DE
Alexander Drabenstedt · Ettlingen, DE
Tobias Braun · Undorf, DE

Key dates

Filing date	May 27, 2014
Grant date	Dec 15, 2015
Priority date	—
Expiry date	May 27, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG01H9/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An optical interferometer including an output-beam beam input for coupling-in an output beam, and a beam splitter device for splitting the output beam into at least one first sub-beam and one second sub-beam, the interferometer being embodied as a heterodyne interferometer by virtue of at least one optical frequency shifter being arranged in the beam path of the interferometer and the interferometer including one or more optical waveguide elements, by which optical waveguides are formed, at least between the output-beam beam input, beam splitter device and frequency shifter. The frequency shifter is arranged in the beam path of the first or second sub-beam.

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