Chapter 4 Measurement - THORLABS Chromatis User Manual

Chromatis™ Dispersion Measurement System
Chapter 4 Measurement
Alignment and Fixture Overview
The Chromatis dispersion measurement system is designed to enable easy and fast measurements of mirrors and
transmissive optics in three different modes of operation: zero-degree reflection, transmission, and angled
reflection. The included fixtures are mechanically registered and easily swappable. There are two separate fixtures
that provide these different measurements, as described below. For a fixture that facilitates measurements on a
complimentary mirror pair, please reach out to applications@thorlabs.com.
Figure 6 The Chromatis optical head showing the fixture measurement position. Fixtures are
Figure 7 Fixture locking and unlocking occurs through rotation of the locking wheel in the fixture
baseplate. Rotate the wheel to the left to lock a fixture into place and rotate the wheel to the right
Please note that no tools are necessary to change fixtures. Do not remove the fixture baseplate or loosen any of
the screws affixing the baseplate to the instrument breadboard.
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interchangeable and allow different measurement modes.
to unlock a fixture for removal from the baseplate.
Chapter 4: Measurement
Fixture
Location
TTN202268-D02