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'''[[../|..Up]]''' '''[[KAGRA/Subgroups/AOS| back to AOS top]]'''

Beam Profilers for large beams

Related subgroups: IOO, MIF, VAC

back to AOS top

Contents

  1. Beam Profilers for large beams
    1. Scope
    2. Current Status
    3. General Description
      1. Functions
      2. Locations

Scope

The Beam Profilers for large beams is to be used to check the beam mode (power spacial distribution) during the commissioning phase of the intereferometer.

Current Status

General Description

The mode matching is one of the important step to operate an optical cavity, and thus a beam profiler can help the commissioning phase. For KAGRA, the beam size will become about 100 mm diameter. There seems no commercial products that is able to measure such a large beam size so far, and we will develop such a tool.

Functions

  • Measuring a spatial distribution of intensities of a laser beam for 300 mm diameter.
  • Visualizing the measured data on site and remote in real time (live view).
  • Offering any other functions that are usually equipped in commercial beam profilers. (Fit-function of the measured data with Gaussian profile, Functions of statistical processing, Functions of exporting the measured data)

Locations

Anywhere in the initial alignment phase.

LCGT/subgroup/AOS/BeamModeProfiler1 (last edited 2012-09-16 20:37:26 by KiwamuIzumi)