IOO Optical Parameters
Under construction...
Mirror Location
Length
MCi to MCo |
0.500m |
MCi/o to MCe |
26.400m |
MCo to IMMT1 |
5.868m |
IMMT1 to IMMT2 |
3.105m |
IMMT2 to PRM |
5.017m |
PRM to PR2 |
14.7615m |
PR2 to PR3 |
11.0661m |
PR3 to BS |
15.7638m |
BS to ITMX (iKAGRA) |
53.3829m |
BS to ITMY (iKAGRA) |
50.0531m |
ITMX/Y to ETMX/Y (iKAGRA) |
2938.35m |
* note that there's no PRM in iKAGRA
* ITMX/Y for iKAGRA is 26.718m ahead of ITMX/Y for bKAGRA (considering MC length and ITM substrate)
* ETMX/Y for iKAGRA is 34.932m ahead of ETMX/Y for bKAGRA
Incident Angles
MCi |
44.729deg |
MCe |
44.729deg |
MCo |
0.543deg |
Beam Sizes
MC waist |
2.3887mm |
MCi |
2.3889mm |
MCe |
2.3889mm |
MCo |
4.4703mm |
IMMT1(iKAGRA) |
2.5413mm |
IMMT2(iKAGRA) |
2.7232mm |
PR2(iKAGRA) |
4.7554mm |
PR3(iKAGRA) |
34.346mm |
BS(iKAGRA) |
34.376mm |
Arm waist (iKAGRA) |
33.723mm |
ITMX/Y(iKAGRA) |
34.481mm |
ETMX/Y(iKAGRA) |
39.671mm |
* I/ETM RoCs are 14km and 7.5km for iKAGRA
Mirror Specs
MCi
HR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
2.5 (+/-??)deg |
|
Transmission@1064nm |
0.0062 +/-?? |
|
HR Loss@1064nm |
<100ppm |
|
AR Reflectivity@1064nm |
?(+/-??)ppm |
|
Diameter |
100mm |
or slightly less |
Thickness |
30mm |
|
MCo
HR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
2.5 (+/-??)deg |
|
Transmission@1064nm |
0.0062 +/-?? |
|
HR Loss@1064nm |
<100ppm |
|
AR Reflectivity@1064nm |
??(+/-??)ppm |
|
Diameter |
100mm |
or slightly less |
Thickness |
30mm |
|
MCe
HR Radius of Curvature |
37.3(+/-0.1)m |
0.5% error |
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
??+/-??deg |
|
Transmission@1064nm |
?? +/-?? |
|
HR Loss@1064nm |
<100ppm |
|
AR Reflectivity@1064nm |
??(+/-??)ppm |
|
Diameter |
100mm |
or slightly less |
Thickness |
60mm? |
|
MMT1 (bKAGRA)
HR Radius of Curvature |
-8.953(+/-0.1)m |
|
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
0.3(+/-??)deg |
|
Transmission@1064nm |
1500ppm<T<2000ppm |
|
HR Loss@1064nm |
<1000ppm |
|
AR Reflectivity@1064nm |
<0.1% |
|
AR Reflectivity@670nm |
>40% |
|
Diameter |
100mm? |
|
Thickness |
30mm? |
|
MMT2 (bKAGRA)
HR Radius of Curvature |
13.910(+/-0.1)m |
|
AR Radius of Curvature |
Flat (>100km) |
As flat as possible |
AR Wedge Angle |
0.3(+/-??)deg |
|
Transmission@1064nm |
200ppm<T<400ppm |
|
HR Loss@1064nm |
<1000ppm |
|
AR Reflectivity@1064nm |
<0.1% |
|
AR Reflectivity@670nm |
>40% |
|
Diameter |
100mm? |
|
Thickness |
30mm? |
|
MMT1 (iKAGRA)
HR Radius of Curvature |
Flat |
|
AR Radius of Curvature |
Flat |
|
AR Wedge Angle |
??+/-??deg |
|
Transmission@1064nm |
?? +/-?? |
|
HR Loss@1064nm |
<100ppm |
|
AR Reflectivity@1064nm |
?(+/-??)ppm |
|
Diameter |
???mm |
|
Thickness |
??mm |
|
MMT2 (iKAGRA)
HR Radius of Curvature |
Flat |
|
AR Radius of Curvature |
Flat |
|
AR Wedge Angle |
??+/-??deg |
|
Transmission@1064nm |
?? +/-?? |
|
HR Loss@1064nm |
<100ppm |
|
AR Reflectivity@1064nm |
?(+/-??)ppm |
|
Diameter |
???mm |
|
Thickness |
??mm |
|
IFI
TGG Diameter |
???mm |
|
TGG Thickness |
??mm |
|
TGG Wedge Angle |
??deg |
|
QR Diameter |
???mm |
|
QR Thickness |
??mm |
|
QR Wedge Angle |
??deg |
|
CWP Diameter |
???mm |
|
CWP Thickness |
??mm |
|
CWP Wedge Angle |
??deg |
|
HWP Diameter |
???mm |
|
HWP Thickness |
??mm |
|
HWP Wedge Angle |
??deg |
|