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FAQs - Frequently Asked Questions

What are the axes on the interferometer graphs?
What does "spectral resolution" mean?
What kind of pulsed measurement is possible and what is the accuracy?
What's the difference between good and bad illumination?

Ltr-files - Why?

If there's any problem with the wavelength meters, it's sometimes difficult for us to understand what happened. Therefore it's essential to have a spectral film (ltr-file) showing the problem.
In an ltr-file (LongTermRecording) not only the measured values (wavelength) are stored time-dependent but also some device information like interferogram data, used calibration and all settings.

How to generate an ltr-file?
The Multichannel-Switcher shows the same picture on all channels
What about the temperature stability of the wlm?
What is the TTL-synchronization option for?
Why is the (re-)calibration of wlm that important?
How to find the best parameters for the PID-controller?
Last update: 12.01.2009 © HighFinesse GmbH 2010