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[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1875|Report by Kumeta]] [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1875|Report by Kumeta]] (Japanese)
[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2105|Report by Somiya]] (English)
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=== Optical Design ===
||item||RoC||Beam Raidus||
||OMMT1||26.5m||4.52mm||
||OMMT2||26.5m||3.23mm||
||OMC1||2.35m||756umm||
||OMC2||flat||653um||
||OMC3||flat||614um||
||OMC4||flat||653um||

||Space||Distance||AOI||
||SRM-OMMT1||4.0m|| ||
||OMMT1-OMMT2||4.0m|| ||
||OMMT2-OMC1||4.75m|| ||
||OMC1-OMC2||0.435m|| ||
||OMC2-OMC3||0.435m|| ||
||OMC3-OMC4||0.435m|| ||
||OMC4-OMC1||0.435m|| ||

=== Suspension Design ===

TBD

=== Control Scheme ===

TBD

Output Mode-cleaner

Report by Kumeta (Japanese) Report by Somiya (English)

Requirement

Shot noise increase due to the signal reduction by the OMC and residual spatial higher order modes after the OMC should be less than 5%.

Optical Design

item

RoC

Beam Raidus

OMMT1

26.5m

4.52mm

OMMT2

26.5m

3.23mm

OMC1

2.35m

756umm

OMC2

flat

653um

OMC3

flat

614um

OMC4

flat

653um

Space

Distance

AOI

SRM-OMMT1

4.0m

OMMT1-OMMT2

4.0m

OMMT2-OMC1

4.75m

OMC1-OMC2

0.435m

OMC2-OMC3

0.435m

OMC3-OMC4

0.435m

OMC4-OMC1

0.435m

Suspension Design

TBD

Control Scheme

TBD

KAGRA/Subgroups/IOO/OMC (last edited 2023-06-22 13:24:12 by miyoki)