Differential interferometer

Organizational Unit

Grants related:


The differential interferometer allows differential measurements of displacements between two flat mirrors with an accuracy well below the micron. The laser beam incident on the interferometer is divided into four beams, two for reference and two for measurement, which makes it very tolerant to changes such as thermal expansion or variations in air characteristics, as they affect both beams in the same way. The interferometer allows linear and also angular measurements between the mirrors.

Related Technical facility
General view of one of the rooms (A) of the optical laboratory. Elongated laboratory with metal tables with holes and various optical and mechanical elements on top of them
Optics Laboratory
The Optics Laboratory is specialized in the realization of all type of optical measurements, alignment and integration of instruments, prototype tests and characterization of components and optical systems in general.
José Luís
Rasilla Piñeiro
López López
View of the interferometer on a optical table in the laboratory. Optoelectronic device with in front of a large prism and a lens with a computer monitor with graphics on the back
Optical quality measurement interferometer
Related Capability
View of an engineer assembling a grism in the laboratory. Engineer placing a piece of glass in a metal cylinder
Design, development and verification of optical systems
The IAC Technology Division has the capacity for developing complete optical elements and systems from the design stages to manufacturing follow-up, integration and final verification.
Equiment type