Measuring methods for laser optics

LASEROPTIK has nearly 40 years of experience with high quality coatings. During these years we collected valuable knowledge about the properties of our optics from the best laboratories we could find: the experiences and feedbacks of our customers.

Additionally, we developed new coating techniques, measurement devices and improved coating materials in co-operation with research partners like Laser Zentrum Hannover e.V. (LZH), Fraunhofer Institute for Applied Optics and Precision Engineering (IOF) in Jena or Institut für Nanophotonik Göttingen e.V. (IFNANO, formerly LLG).

To guarantee stable high quality of our optics LASEROPTIK owns a wide range of measuring equipment:

Zeiss differential interference contrast microscope

Keyence flexible microscope

Zygo NewView 9000

Thin film stress
For many applications it is important to know exactly the thin film stress, respectively to compensate for the bending of the optics due to this stress. LASEROPTIK uses an in-situ stress measurement system and interferometric mea­surements for the quantification of the induced stress.

OptiSpheric 1000 AF

Zygo Verifire MST

Interferometer for smaller optics

PERKIN-ELMER spectrometers

Custom-built white-light interferometer

Cavity ring-down setup

Climate chamber and abrasion-test-set

Forward and backward scattering can be de­tected in the wavelength range from 190–800  nm by a custom-made measuring device based on a Coblentz sphere. We also offer external qualifi­cations at the IOF or LZH.

Absorption measurement

To produce high power optics you have to consider the different mechanisms of laser indu­ced damages and the influences of the substra­tes and coating materials. Therefore we would like to provide some background information on topic Laser Induced Damage Threshold (LIDT).