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Size: 1419
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Size: 1145
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| == Applicable Documents == TBD |
== Current Status == * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=872|JGW-T1200872]] |
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| The mode matching is one of the important step to construct an optical cavity. For KAGAR, the beam size will become about 10cm diameter, | The mode matching is one of the important step to construct an optical cavity. For KAGRA, the beam size will become about 10cm diameter, |
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== 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]] |
Beam Profilers for large beams
Related subgroups: IOO, MIF, VAC
Contents
Scope
The scope of Beam Profilers for large beams is to check the beam mode during the phase of initial alignment of optics.
Current Status
General Description
The mode matching is one of the important step to construct an optical cavity. For KAGRA, 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.