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Size: 950
Comment:
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Size: 2181
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 9: | Line 9: |
| ---- === g1=0.994, g2=0.571, 16.875MHz, 45MHz === This is the parameter set chosen by the MIF group. ==== Lengths & Frequencies ==== ||f1||16.881370MHz (3*f2/8)||f2||45.016989MHz||f3||56.271236MHz (10*f2/8)|| ||Larm||3000.0m||Lmc||26.638m|||||| ||Lprc||66.5863m||Lsrc||66.5924m||Las||3.3298m|| ||Lp1||14.75854||Lp2||12.0657m||Lp3||14.7621m|| ||Lmi||25m||Lmx||26.6649m||Lmy||23.3351m|| ||Ls1||14.75854m||Ls2||12.0657m||Ls3||14.7621m|| ||Folding angle||0.6957[deg]|||||||||| Folding angle is an incident angle of the beam to the folding mirrors. The angle between incoming and reflected beams is twice the folding angle. ==== Radius of Curvatures (Positive for concave) ==== ||ITM||>500km||ETM||7000.0m|||||| ||PRM||313.8788m||PR2||-3.2547m||PR3||27.36m|| ||SRM||313.8788m||SR2||-3.2547m||SR3||27.36m|| ==== Beam Spot Size (1/e^2 radius) ==== ||PRM||4.046mm||PR2||4.046mm||PR3||34.242mm|| ||SRM||4.046mm||SR2||4.046mm||SR3||34.242mm|| ==== Lens effect (effective focal length seen from the AR side) ==== ||ITM (Sapphire)||>666km|| ||PRM (Silica)||>10000km|| ---- |
|
| Line 10: | Line 43: |
| This is an alternative parameter set. Do not use these parameters. |
|
| Line 15: | Line 50: |
| ||Lp1||17.04838m||Lp2||14.1m||Lp3||17.1m|| | ||Lp1||16.9798m||Lp2||14.2858m||Lp3||16.9828m|| |
| Line 17: | Line 52: |
| ||Ls1||17.04838m||Ls2||14.1m||Ls3||17.1m|| | ||Ls1||16.9798m||Ls2||14.2858m||Ls3||16.9828m|| |
| Line 21: | Line 56: |
| ||PRM||344.518m||PR2||-3.919m||PR3||31.970m|| ||SRM||344.518m||SR2||-3.919m||SR3||31.970m|| |
||ITM||7246.3768m||ETM||7246.3768m|||||| ||PRM||361.552m||PR2||-3.985m||PR3||32.4m|| ||SRM||361.552m||SR2||-3.985m||SR3||32.4m|| |
| Line 25: | Line 61: |
| ||PRM||4.35mm||PR2||4.34mm||PR3||35.77mm|| ||SRM||4.35mm||SR2||4.34mm||SR3||35.77mm|| |
||PRM||4.355mm||PR2||4.355mm||PR3||35.77mm|| ||SRM||4.355mm||SR2||4.355mm||SR3||35.77mm|| |
| Line 33: | Line 69: |
| ---- |
Actual Optical Parameters of the Main Interferometer
Contents
Optical Parameters
Interferometer Diagram
g1=0.994, g2=0.571, 16.875MHz, 45MHz
This is the parameter set chosen by the MIF group.
Lengths & Frequencies
f1 |
16.881370MHz (3*f2/8) |
f2 |
45.016989MHz |
f3 |
56.271236MHz (10*f2/8) |
Larm |
3000.0m |
Lmc |
26.638m |
||
Lprc |
66.5863m |
Lsrc |
66.5924m |
Las |
3.3298m |
Lp1 |
14.75854 |
Lp2 |
12.0657m |
Lp3 |
14.7621m |
Lmi |
25m |
Lmx |
26.6649m |
Lmy |
23.3351m |
Ls1 |
14.75854m |
Ls2 |
12.0657m |
Ls3 |
14.7621m |
Folding angle |
0.6957[deg] |
||||
Folding angle is an incident angle of the beam to the folding mirrors. The angle between incoming and reflected beams is twice the folding angle.
Radius of Curvatures (Positive for concave)
ITM |
>500km |
ETM |
7000.0m |
||
PRM |
313.8788m |
PR2 |
-3.2547m |
PR3 |
27.36m |
SRM |
313.8788m |
SR2 |
-3.2547m |
SR3 |
27.36m |
Beam Spot Size (1/e^2 radius)
PRM |
4.046mm |
PR2 |
4.046mm |
PR3 |
34.242mm |
SRM |
4.046mm |
SR2 |
4.046mm |
SR3 |
34.242mm |
Lens effect (effective focal length seen from the AR side)
ITM (Sapphire) |
>666km |
PRM (Silica) |
>10000km |
g1=g2=0.586, 11.25MHz, 45MHz
This is an alternative parameter set. Do not use these parameters.
Lengths & Frequencies
f1 |
11.255822MHz |
f2 |
45.023289MHz |
f3 |
39.395378MHz |
Larm |
3000.0m |
Lmc |
26.634m |
||
Lprc |
73.24838m |
Lsrc |
73.24838m |
Las |
3.3293m |
Lp1 |
16.9798m |
Lp2 |
14.2858m |
Lp3 |
16.9828m |
Lmi |
25m |
Lmx |
26.66465m |
Lmy |
23.33535m |
Ls1 |
16.9798m |
Ls2 |
14.2858m |
Ls3 |
16.9828m |
Radius of Curvatures (Positive for concave)
ITM |
7246.3768m |
ETM |
7246.3768m |
||
PRM |
361.552m |
PR2 |
-3.985m |
PR3 |
32.4m |
SRM |
361.552m |
SR2 |
-3.985m |
SR3 |
32.4m |
Beam Spot Size (1/e^2 radius)
PRM |
4.355mm |
PR2 |
4.355mm |
PR3 |
35.77mm |
SRM |
4.355mm |
SR2 |
4.355mm |
SR3 |
35.77mm |
Lens effect (effective focal length seen from the AR side)
ITM (Sapphire) |
-9610m |
PRM (Silica) |
-765.6m |