Magazine Article

Method for Measuring Collimator-Pointing Sensitivity to Temperature Changes

TBMG-9866

05/01/2011

Abstract
Content

For a variety of applications, it is important to measure the sensitivity of the pointing of a beam emerging from a collimator, as a function of temperature changes. A straightforward method for carrying out this measurement is based on using interferometry for monitoring the changes in beam pointing, which presents its own problems. The added temperature dependence and complexity issues relating to using an interferometer are addressed by not using an interferometer in the first place. Instead, the collimator is made part of an arrangement that uses a minimum number of low-cost, off-the-shelf materials and by using a quad diode to measure changes in beam pointing.

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Citation
"Method for Measuring Collimator-Pointing Sensitivity to Temperature Changes," Mobility Engineering, May 1, 2011.
Additional Details
Publisher
Published
May 1, 2011
Product Code
TBMG-9866
Content Type
Magazine Article
Language
English