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⇤ ← Revision 1 as of 2010-11-08 01:36:18
Size: 2737
Comment:
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Size: 2642
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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| == Interferometer Parameters == | == iLCGT Optical Parameters == |
| Line 45: | Line 45: |
| ||PRM radius/thickness || No PR || ||cm|| ||SRM radius/thickness || No SR || ||cm|| |
iLCGT Optical Parameters
Parameter |
iLCGT |
-- |
units |
Laser source |
|||
Wave length |
1064 |
|
nm |
Initial Laser Power |
10-20 |
|
W |
Injecting Laser Power into IFO |
10-20 |
|
W |
Modulation depth |
-- |
|
|
RF freq 1 |
TBD (PM) |
|
Hz |
Primary parameters of interferometer |
|||
Arm cavity Finesse |
1546 |
|
|
Arm cavity power gain |
960 |
|
|
Arm power (single arm) |
-- |
|
W |
Cavity Length |
|||
Arm cavity length |
3000 |
|
m |
Asymmetry length |
3.33103 |
|
m |
BS-FM length |
25 |
|
m |
Mirror optical properties |
|||
EM Reflectivity |
0.999945 |
|
|
FM Reflectivity |
0.996000 |
|
|
BS Reflectivity |
0.5 |
|
|
HR Coating Loss of EM, FM |
45e-6 |
|
|
BS Loss |
-- |
|
|
AR Transmittance |
-- |
|
|
AR Coating Loss |
-- |
|
|
|
|
|
|
Arm cavity cut-off frequency |
|
|
Hz |
MICH contrast |
|
|
|
|
|
|
|
Mirror geometries |
|||
EM mass |
10.8 |
|
kg |
FM mass |
30? |
|
kg |
BS mass |
-- |
|
kg |
|
|
|
|
EM ROC |
-- |
|
m |
FM ROC |
-- |
|
m |
FM AR ROC |
Flat |
|
m |
BS ROC |
Infinity |
|
m |
|
|
|
|
EM radius/thickness |
25 / 15 |
|
cm |
FM radius/thickness |
-- |
|
cm |
BS radius/thickness |
38 / 12 |
|
cm |
|
|
|
|
Mode Cleaner |
|||
MC1 length |
-- |
|
m |
MC2 length |
13.324109 |
|
m |
MC1 Finesse |
-- |
|
|
MC2 Finesse |
-- |
|
|
|
|
|
|
Control Bandwidth |
|||
Quantum efficiency |
0.9 |
|
|
CARM control band width |
30k? |
|
Hz |
DARM control band width |
200? |
|
Hz |
MICH control band width |
50? |
|
Hz |
|
|
|
|