D-TOP Optics

Configuration examples and characteristics of the optical system using the D-TOP

Micro Observation Interferometer

Mach-Zehnder interferometer that can be observed transmitted wavefront of the glass substrate of about 1mm.

R Measuring Interferometer

It is a device that uses an interferometer and measures the radius of curvature of the concave surface of the small curvature.

Coherent Length Measuring Machine

As a polarizing Michelson interferometer using PBS and 1/4 wave plate, we have measured the coherent length of the background light of the semiconductor laser.


TOP is configured using the catalog product primarily, but it may be requested a adapter, holder and base that are not in the catalog in order to fix a light source, special shape sample and detector.

This is a hexagon socket head cap screw with a vent hole.
The Helium Neon laser modules have a robust mechanical design, excellent beam quality and long service life of up to 20,000 hours. Standard a...
These are low outgassing posts which are ideal for using in the high vacuum conditions.