Differences between revisions 1 and 15 (spanning 14 versions)

Beam Profilers for large beams

Related subgroups: IOO, MIF, VAC

..Up

Contents

Beam Profilers for large beams

Scope

The scope of Beam Profilers for large beams is to check the beam mode during the phase of initial alignment of optics.

Applicable Documents

TBD

General Description

The mode matching is one of the important step to construct an optical cavity. For KAGAR, the beam size will become about 10cm diameter, while there seems no commercial products that is able to measure such a large beam size. Thus we should develop such tool.

Functions

Measuring a spatial distribution of intensities of a laser beam for XX cm 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. (fitting the intensity distribution with theoretical Gaussian profile, statistical processing and extracting the measured data)

Locations

Anywhere in the initial alignment phase.

Requirements

TBD

Characteristics

TBD. The larger ones and middle one should be newly developed. There are some commercial products for smaller ones.

Inspection plans

TBD

Procurement process and plans

TBD

-  ⇤ ← Revision 1 as of 2012-03-04 17:09:28 → 
  Size: 88
  Editor: TomotadaAkutsu
  Comment:
+   ← Revision 15 as of 2012-03-04 17:36:45 → ⇥
  Size: 1419
  Editor: TomotadaAkutsu
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 1:
-LCGT/subgroup/AOS/BeamModeProfiler1について、ここに記述してください。
+= Beam Profilers for large beams =
'''''Related subgroups:''''' IOO, MIF, VAC
----
'''[[../|..Up]]'''
<<TableOfContents(3)>>

== Scope ==
The scope of Beam Profilers for large beams is to check the beam mode during the phase of initial alignment of optics.

== Applicable Documents ==
TBD

== General Description ==
The mode matching is one of the important step to construct an optical cavity. For KAGAR, the beam size will become about 10cm diameter,
while there seems no commercial products that is able to measure such a large beam size.
Thus we should develop such tool.

=== Functions ===
 * Measuring a spatial distribution of intensities of a laser beam for XX cm 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. (fitting the intensity distribution with theoretical Gaussian profile, statistical processing and extracting the measured data)
=== Locations ===
Anywhere in the initial alignment phase.

== Requirements ==
TBD

== Characteristics ==
TBD.
The larger ones and middle one should be newly developed.
There are some commercial products for smaller ones.

== Inspection plans ==
TBD

== Procurement process and plans ==
TBD


== Links ==
 * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=872|JGW-T1200872]]