Differences between revisions 19 and 21 (spanning 2 versions)
⇤ ← Revision 19 as of 2012-06-18 20:25:10 →
Size: 1253
Editor: TomotadaAkutsu
Comment:
← Revision 21 as of 2012-09-16 20:37:26 → ⇥
Size: 1294
Editor: KiwamuIzumi
Comment:
Deletions are marked like this. Additions are marked like this.
Line 4: Line 4:
'''[[../|..Up]]''' '''[[KAGRA/Subgroups/AOS| back to AOS top]]'''
Line 8: Line 8:
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.  . 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.
Line 14: Line 14:
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.		  . 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.
Line 25: Line 23:
Anywhere in the initial alignment phase.  . Anywhere in the initial alignment phase.

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)